145612454464 has 21 divisors (see below), whose sum is σ = 288955772227. Its totient is φ = 72804700864.

The previous prime is 145612454423. The next prime is 145612454501. The reversal of 145612454464 is 464454216541.

It is a happy number.

The square root of 145612454464 is 381592.

It is a perfect power (a square), and thus also a powerful number.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 2 ways as a sum of consecutive naturals, for example, 3028887 + ... + 3076585.

Almost surely, 2^145612454464 is an apocalyptic number.

145612454464 is the 381592-nd square number.

It is an amenable number.

145612454464 is a deficient number, since it is larger than the sum of its proper divisors (143343317763).

145612454464 is an frugal number, since it uses more digits than its factorization.

145612454464 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 95410 (or 47701 counting only the distinct ones).

The product of its digits is 1843200, while the sum is 46.

The spelling of 145612454464 in words is "one hundred forty-five billion, six hundred twelve million, four hundred fifty-four thousand, four hundred sixty-four".