13098731 has 2 divisors, whose sum is σ = 13098732. Its totient is φ = 13098730.

The previous prime is 13098697. The next prime is 13098751. The reversal of 13098731 is 13789031.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-13098731 is a prime.

It is a super-2 number, since 2×13098731² = 343153507620722, which contains 22 as substring.

It is a Sophie Germain prime.

It is not a weakly prime, because it can be changed into another prime (13098751) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6549365 + 6549366.

It is an arithmetic number, because the mean of its divisors is an integer number (6549366).

Almost surely, 2^13098731 is an apocalyptic number.

13098731 is a deficient number, since it is larger than the sum of its proper divisors (1).

13098731 is an equidigital number, since it uses as much as digits as its factorization.

13098731 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 4536, while the sum is 32.

The square root of 13098731 is about 3619.2169042488. The cubic root of 13098731 is about 235.7272236197.

The spelling of 13098731 in words is "thirteen million, ninety-eight thousand, seven hundred thirty-one".