145515928 has 16 divisors (see below), whose sum is σ = 275492880. Its totient is φ = 72051168.

The previous prime is 145515911. The next prime is 145515941. The reversal of 145515928 is 829515541.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 87475 + ... + 89122.

It is an arithmetic number, because the mean of its divisors is an integer number (17218305).

Almost surely, 2^145515928 is an apocalyptic number.

It is an amenable number.

145515928 is a deficient number, since it is larger than the sum of its proper divisors (129976952).

145515928 is a wasteful number, since it uses less digits than its factorization.

145515928 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 176706 (or 176702 counting only the distinct ones).

The product of its digits is 72000, while the sum is 40.

The square root of 145515928 is about 12062.9983005885. The cubic root of 145515928 is about 525.9811469482.

The spelling of 145515928 in words is "one hundred forty-five million, five hundred fifteen thousand, nine hundred twenty-eight".