145303625 has 32 divisors (see below), whose sum is σ = 188866080. Its totient is φ = 111513600.

The previous prime is 145303619. The next prime is 145303661. The reversal of 145303625 is 526303541.

It can be written as a sum of positive squares in 16 ways, for example, as 100721296 + 44582329 = 10036^2 + 6677^2 .

It is not a de Polignac number, because 145303625 - 2²² = 141109321 is a prime.

It is a super-2 number, since 2×145303625² = 42226286876281250, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 411449 + ... + 411801.

It is an arithmetic number, because the mean of its divisors is an integer number (5902065).

Almost surely, 2^145303625 is an apocalyptic number.

It is an amenable number.

145303625 is a deficient number, since it is larger than the sum of its proper divisors (43562455).

145303625 is an equidigital number, since it uses as much as digits as its factorization.

145303625 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 494 (or 484 counting only the distinct ones).

The product of its (nonzero) digits is 10800, while the sum is 29.

The square root of 145303625 is about 12054.1953277687. The cubic root of 145303625 is about 525.7252259930.

The spelling of 145303625 in words is "one hundred forty-five million, three hundred three thousand, six hundred twenty-five".