145520431392 has 96 divisors (see below), whose sum is σ = 462241406592. Its totient is φ = 39131541504.

The previous prime is 145520431321. The next prime is 145520431393. The reversal of 145520431392 is 293134025541.

It is a tau number, because it is divible by the number of its divisors (96).

It is a self number, because there is not a number n which added to its sum of digits gives 145520431392.

It is not an unprimeable number, because it can be changed into a prime (145520431393) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 6357643 + ... + 6380490.

It is an arithmetic number, because the mean of its divisors is an integer number (4815014652).

Almost surely, 2^145520431392 is an apocalyptic number.

145520431392 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

145520431392 is an abundant number, since it is smaller than the sum of its proper divisors (316720975200).

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

145520431392 is a wasteful number, since it uses less digits than its factorization.

145520431392 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12738170 (or 12738162 counting only the distinct ones).

The product of its (nonzero) digits is 129600, while the sum is 39.

The spelling of 145520431392 in words is "one hundred forty-five billion, five hundred twenty million, four hundred thirty-one thousand, three hundred ninety-two".