215134124201400 has 96 divisors (see below), whose sum is σ = 666926734336560. Its totient is φ = 57368157911040.

The previous prime is 215134124201383. The next prime is 215134124201407. The reversal of 215134124201400 is 4102421431512.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (215134124201407) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 34019214 + ... + 39844386.

Almost surely, 2^{215134124201400} is an apocalyptic number.

215134124201400 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

215134124201400 is an abundant number, since it is smaller than the sum of its proper divisors (451792610135160).

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

215134124201400 is a wasteful number, since it uses less digits than its factorization.

215134124201400 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5886745 (or 5886736 counting only the distinct ones).

The product of its (nonzero) digits is 7680, while the sum is 30.

Adding to 215134124201400 its reverse (4102421431512), we get a palindrome (219236545632912).

The spelling of 215134124201400 in words is "two hundred fifteen trillion, one hundred thirty-four billion, one hundred twenty-four million, two hundred one thousand, four hundred".