130718431 has 4 divisors (see below), whose sum is σ = 130953672. Its totient is φ = 130483192.

The previous prime is 130718429. The next prime is 130718449. The reversal of 130718431 is 134817031.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 130718431 - 2¹ = 130718429 is a prime.

It is a super-2 number, since 2×130718431² = 34174616406203522, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 130718431.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (130718411) 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, 116785 + ... + 117898.

It is an arithmetic number, because the mean of its divisors is an integer number (32738418).

Almost surely, 2^130718431 is an apocalyptic number.

130718431 is a deficient number, since it is larger than the sum of its proper divisors (235241).

130718431 is an equidigital number, since it uses as much as digits as its factorization.

130718431 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 235240.

The product of its (nonzero) digits is 2016, while the sum is 28.

The square root of 130718431 is about 11433.2161267073. The cubic root of 130718431 is about 507.5111741738.

The spelling of 130718431 in words is "one hundred thirty million, seven hundred eighteen thousand, four hundred thirty-one".