145658312 has 36 divisors (see below), whose sum is σ = 291280065. Its totient is φ = 68272000.

The previous prime is 145658309. The next prime is 145658323. The reversal of 145658312 is 213856541.

It is a powerful number, because all its prime factors have an exponent greater than 1 and also an Achilles number because it is not a perfect power.

145658312 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 2 ways, for example, as 133310116 + 12348196 = 11546^2 + 3514^2 .

It is an ABA number since it can be written as A⋅B^A, here for A=2, B=8534.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 580187 + ... + 580437.

Almost surely, 2^145658312 is an apocalyptic number.

It is an amenable number.

145658312 is a deficient number, since it is larger than the sum of its proper divisors (145621753).

145658312 is an equidigital number, since it uses as much as digits as its factorization.

145658312 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 542 (or 270 counting only the distinct ones).

The product of its digits is 28800, while the sum is 35.

The square root of 145658312 is about 12068.8985412920. The cubic root of 145658312 is about 526.1526445234.

Multiplying 145658312 by its product of digits (28800), we get a square (4194959385600 = 2048160²).

The spelling of 145658312 in words is "one hundred forty-five million, six hundred fifty-eight thousand, three hundred twelve".