146574731 has 12 divisors (see below), whose sum is σ = 156687888. Its totient is φ = 137081472.

The previous prime is 146574709. The next prime is 146574739. The reversal of 146574731 is 137475641.

146574731 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a de Polignac number, because none of the positive numbers 2^k-146574731 is a prime.

It is a super-2 number, since 2×146574731² = 42968303535444722, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (146574739) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 46745 + ... + 49781.

It is an arithmetic number, because the mean of its divisors is an integer number (13057324).

Almost surely, 2^146574731 is an apocalyptic number.

146574731 is a deficient number, since it is larger than the sum of its proper divisors (10113157).

146574731 is a wasteful number, since it uses less digits than its factorization.

146574731 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3238 (or 3221 counting only the distinct ones).

The product of its digits is 70560, while the sum is 38.

The square root of 146574731 is about 12106.8051524752. The cubic root of 146574731 is about 527.2537799564.

The spelling of 146574731 in words is "one hundred forty-six million, five hundred seventy-four thousand, seven hundred thirty-one".