145039612 has 12 divisors (see below), whose sum is σ = 257296816. Its totient is φ = 71526240.

The previous prime is 145039513. The next prime is 145039613. The reversal of 145039612 is 216930541.

It is a super-2 number, since 2×145039612² = 42072978098221088, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (145039613) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 248064 + ... + 248647.

Almost surely, 2^145039612 is an apocalyptic number.

It is an amenable number.

145039612 is a deficient number, since it is larger than the sum of its proper divisors (112257204).

145039612 is a wasteful number, since it uses less digits than its factorization.

145039612 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 496788 (or 496786 counting only the distinct ones).

The product of its (nonzero) digits is 6480, while the sum is 31.

The square root of 145039612 is about 12043.2392652475. The cubic root of 145039612 is about 525.4066231516.

The spelling of 145039612 in words is "one hundred forty-five million, thirty-nine thousand, six hundred twelve".