133571725380 has 96 divisors (see below), whose sum is σ = 417173863680. Its totient is φ = 35480494080.

The previous prime is 133571725373. The next prime is 133571725387. The reversal of 133571725380 is 83527175331.

133571725380 is a `hidden beast` number, since 1 + 3 + 3 + 571 + 72 + 5 + 3 + 8 + 0 = 666.

It is an interprime number because it is at equal distance from previous prime (133571725373) and next prime (133571725387).

It is a super-2 number, since 2×133571725380² (a number of 23 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is not an unprimeable number, because it can be changed into a prime (133571725387) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 342456 + ... + 620015.

It is an arithmetic number, because the mean of its divisors is an integer number (4345561080).

Almost surely, 2^133571725380 is an apocalyptic number.

133571725380 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

133571725380 is an abundant number, since it is smaller than the sum of its proper divisors (283602138300).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

133571725380 is a wasteful number, since it uses less digits than its factorization.

133571725380 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 962746 (or 962738 counting only the distinct ones).

The product of its (nonzero) digits is 529200, while the sum is 45.

The spelling of 133571725380 in words is "one hundred thirty-three billion, five hundred seventy-one million, seven hundred twenty-five thousand, three hundred eighty".