130837831 has 4 divisors (see below), whose sum is σ = 138534192. Its totient is φ = 123141472.

The previous prime is 130837799. The next prime is 130837843. The reversal of 130837831 is 138738031.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 138738031 = 47 ⋅2951873.

It is not a de Polignac number, because 130837831 - 2⁵ = 130837799 is a prime.

It is a super-2 number, since 2×130837831² = 34237076041569122, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (130837871) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3848155 + ... + 3848188.

It is an arithmetic number, because the mean of its divisors is an integer number (34633548).

Almost surely, 2^130837831 is an apocalyptic number.

130837831 is a deficient number, since it is larger than the sum of its proper divisors (7696361).

130837831 is an equidigital number, since it uses as much as digits as its factorization.

130837831 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7696360.

The product of its (nonzero) digits is 12096, while the sum is 34.

The square root of 130837831 is about 11438.4365627476. The cubic root of 130837831 is about 507.6656496957.

The spelling of 130837831 in words is "one hundred thirty million, eight hundred thirty-seven thousand, eight hundred thirty-one".