130578831 has 32 divisors (see below), whose sum is σ = 202245120. Its totient is φ = 83184192.

The previous prime is 130578829. The next prime is 130578881. The reversal of 130578831 is 138875031.

130578831 is a `hidden beast` number, since 1 + 3 + 0 + 578 + 83 + 1 = 666.

It is not a de Polignac number, because 130578831 - 2¹ = 130578829 is a prime.

It is a super-2 number, since 2×130578831² = 34101662210653122, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (130578821) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 53371 + ... + 55763.

It is an arithmetic number, because the mean of its divisors is an integer number (6320160).

Almost surely, 2^130578831 is an apocalyptic number.

130578831 is a deficient number, since it is larger than the sum of its proper divisors (71666289).

130578831 is a wasteful number, since it uses less digits than its factorization.

130578831 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2492 (or 2486 counting only the distinct ones).

The product of its (nonzero) digits is 20160, while the sum is 36.

The square root of 130578831 is about 11427.1094770287. The cubic root of 130578831 is about 507.3304452714.

The spelling of 130578831 in words is "one hundred thirty million, five hundred seventy-eight thousand, eight hundred thirty-one".