64231130 has 16 divisors (see below), whose sum is σ = 115875144. Its totient is φ = 25634880.

The previous prime is 64231129. The next prime is 64231159. The reversal of 64231130 is 3113246.

It can be written as a sum of positive squares in 4 ways, for example, as 61984129 + 2247001 = 7873^2 + 1499^2 .

It is a super-2 number, since 2×64231130² = 8251276122153800, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2357 + ... + 11576.

Almost surely, 2^64231130 is an apocalyptic number.

64231130 is a deficient number, since it is larger than the sum of its proper divisors (51644014).

64231130 is a wasteful number, since it uses less digits than its factorization.

64231130 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14401.

The product of its (nonzero) digits is 432, while the sum is 20.

The square root of 64231130 is about 8014.4326062423. The cubic root of 64231130 is about 400.4809423377.

Adding to 64231130 its reverse (3113246), we get a palindrome (67344376).

The spelling of 64231130 in words is "sixty-four million, two hundred thirty-one thousand, one hundred thirty".