145527640 has 32 divisors (see below), whose sum is σ = 338002560. Its totient is φ = 56332800.

The previous prime is 145527637. The next prime is 145527653. The reversal of 145527640 is 46725541.

It is a Smith number, since the sum of its digits (34) coincides with the sum of the digits of its prime factors.

It is a junction number, because it is equal to n+sod(n) for n = 145527596 and 145527605.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 57441 + ... + 59920.

It is an arithmetic number, because the mean of its divisors is an integer number (10562580).

Almost surely, 2^145527640 is an apocalyptic number.

145527640 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

145527640 is an abundant number, since it is smaller than the sum of its proper divisors (192474920).

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

145527640 is a wasteful number, since it uses less digits than its factorization.

145527640 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 117403 (or 117399 counting only the distinct ones).

The product of its (nonzero) digits is 33600, while the sum is 34.

The square root of 145527640 is about 12063.4837422695. The cubic root of 145527640 is about 525.9952579485.

The spelling of 145527640 in words is "one hundred forty-five million, five hundred twenty-seven thousand, six hundred forty".