145302556 has 12 divisors (see below), whose sum is σ = 290605168. Its totient is φ = 62272512.

The previous prime is 145302541. The next prime is 145302593. The reversal of 145302556 is 655203541.

145302556 is an admirable number.

It is a super-2 number, since 2×145302556² = 42225665560266272, which contains 22 as substring.

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, 2594661 + ... + 2594716.

Almost surely, 2^145302556 is an apocalyptic number.

It is an amenable number.

145302556 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

145302556 is a wasteful number, since it uses less digits than its factorization.

145302556 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5189388 (or 5189386 counting only the distinct ones).

The product of its (nonzero) digits is 18000, while the sum is 31.

The square root of 145302556 is about 12054.1509862785. The cubic root of 145302556 is about 525.7239367349.

The spelling of 145302556 in words is "one hundred forty-five million, three hundred two thousand, five hundred fifty-six".