130818739 has 4 divisors (see below), whose sum is σ = 135329760. Its totient is φ = 126307720.

The previous prime is 130818703. The next prime is 130818767. The reversal of 130818739 is 937818031.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 937818031 = 23 ⋅40774697.

It is a cyclic number.

It is not a de Polignac number, because 130818739 - 2²³ = 122430131 is a prime.

It is a super-2 number, since 2×130818739² = 34227084947100242, which contains 22 as substring.

It is a Smith number, since the sum of its digits (40) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (130818239) 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, 2255467 + ... + 2255524.

It is an arithmetic number, because the mean of its divisors is an integer number (33832440).

Almost surely, 2^130818739 is an apocalyptic number.

130818739 is a deficient number, since it is larger than the sum of its proper divisors (4511021).

130818739 is an equidigital number, since it uses as much as digits as its factorization.

130818739 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4511020.

The product of its (nonzero) digits is 36288, while the sum is 40.

The square root of 130818739 is about 11437.6019776875. The cubic root of 130818739 is about 507.6409554515.

The spelling of 130818739 in words is "one hundred thirty million, eight hundred eighteen thousand, seven hundred thirty-nine".