145600520 has 32 divisors (see below), whose sum is σ = 352802520. Its totient is φ = 53760000.

The previous prime is 145600517. The next prime is 145600541. The reversal of 145600520 is 25006541.

145600520 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 4 ways, for example, as 67207204 + 78393316 = 8198^2 + 8854^2 .

It is a super-2 number, since 2×145600520² = 42399022848540800, which contains 22 as substring.

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, 139481 + ... + 140520.

Almost surely, 2^145600520 is an apocalyptic number.

145600520 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

145600520 is an abundant number, since it is smaller than the sum of its proper divisors (207202000).

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

145600520 is a wasteful number, since it uses less digits than its factorization.

145600520 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 280025 (or 280021 counting only the distinct ones).

The product of its (nonzero) digits is 1200, while the sum is 23.

The square root of 145600520 is about 12066.5040504696. The cubic root of 145600520 is about 526.0830491450.

The spelling of 145600520 in words is "one hundred forty-five million, six hundred thousand, five hundred twenty".