130831242 has 32 divisors (see below), whose sum is σ = 267556608. Its totient is φ = 42634176.

The previous prime is 130831237. The next prime is 130831243. The reversal of 130831242 is 242138031.

It is not an unprimeable number, because it can be changed into a prime (130831243) 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, 118063 + ... + 119165.

It is an arithmetic number, because the mean of its divisors is an integer number (8361144).

Almost surely, 2^130831242 is an apocalyptic number.

130831242 is an abundant number, since it is smaller than the sum of its proper divisors (136725366).

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

130831242 is a wasteful number, since it uses less digits than its factorization.

130831242 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1534.

The product of its (nonzero) digits is 1152, while the sum is 24.

The square root of 130831242 is about 11438.1485389900. The cubic root of 130831242 is about 507.6571275298.

Adding to 130831242 its reverse (242138031), we get a palindrome (372969273).

The spelling of 130831242 in words is "one hundred thirty million, eight hundred thirty-one thousand, two hundred forty-two".