146431664 has 20 divisors (see below), whose sum is σ = 290632440. Its totient is φ = 71429760.

The previous prime is 146431657. The next prime is 146431697. The reversal of 146431664 is 466134641.

It is a happy number.

146431664 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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, 110954 + ... + 112265.

It is an arithmetic number, because the mean of its divisors is an integer number (14531622).

Almost surely, 2^146431664 is an apocalyptic number.

It is an amenable number.

146431664 is a deficient number, since it is larger than the sum of its proper divisors (144200776).

146431664 is a wasteful number, since it uses less digits than its factorization.

146431664 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 223268 (or 223262 counting only the distinct ones).

The product of its digits is 41472, while the sum is 35.

The square root of 146431664 is about 12100.8951734985. The cubic root of 146431664 is about 527.0821788175.

The spelling of 146431664 in words is "one hundred forty-six million, four hundred thirty-one thousand, six hundred sixty-four".