131028264 has 48 divisors (see below), whose sum is σ = 367110900. Its totient is φ = 42169344.

The previous prime is 131028239. The next prime is 131028277. The reversal of 131028264 is 462820131.

It can be written as a sum of positive squares in 2 ways, for example, as 130919364 + 108900 = 11442^2 + 330^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 29289 + ... + 33464.

Almost surely, 2^131028264 is an apocalyptic number.

It is an amenable number.

131028264 is an abundant number, since it is smaller than the sum of its proper divisors (236082636).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

131028264 is a wasteful number, since it uses less digits than its factorization.

131028264 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 62794 (or 62787 counting only the distinct ones).

The product of its (nonzero) digits is 2304, while the sum is 27.

The square root of 131028264 is about 11446.7577942403. The cubic root of 131028264 is about 507.9118308552.

Adding to 131028264 its reverse (462820131), we get a palindrome (593848395).

The spelling of 131028264 in words is "one hundred thirty-one million, twenty-eight thousand, two hundred sixty-four".