146630731 has 16 divisors (see below), whose sum is σ = 162217440. Its totient is φ = 131685120.

The previous prime is 146630723. The next prime is 146630747. The reversal of 146630731 is 137036641.

146630731 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a cyclic number.

It is not a de Polignac number, because 146630731 - 2³ = 146630723 is a prime.

It is a super-2 number, since 2×146630731² = 43001142547188722, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 146630693 and 146630702.

It is not an unprimeable number, because it can be changed into a prime (146630131) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 257415 + ... + 257983.

It is an arithmetic number, because the mean of its divisors is an integer number (10138590).

Almost surely, 2^146630731 is an apocalyptic number.

146630731 is a deficient number, since it is larger than the sum of its proper divisors (15586709).

146630731 is a wasteful number, since it uses less digits than its factorization.

146630731 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1086.

The product of its (nonzero) digits is 9072, while the sum is 31.

The square root of 146630731 is about 12109.1176804918. The cubic root of 146630731 is about 527.3209185235.

The spelling of 146630731 in words is "one hundred forty-six million, six hundred thirty thousand, seven hundred thirty-one".