109656739 has 2 divisors, whose sum is σ = 109656740. Its totient is φ = 109656738.

The previous prime is 109656721. The next prime is 109656763. The reversal of 109656739 is 937656901.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 109656739 - 2⁵ = 109656707 is a prime.

It is a super-2 number, since 2×109656739² = 24049200816228242, which contains 22 as substring.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (109656769) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 54828369 + 54828370.

It is an arithmetic number, because the mean of its divisors is an integer number (54828370).

Almost surely, 2^109656739 is an apocalyptic number.

109656739 is a deficient number, since it is larger than the sum of its proper divisors (1).

109656739 is an equidigital number, since it uses as much as digits as its factorization.

109656739 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 306180, while the sum is 46.

The square root of 109656739 is about 10471.7113692080. The cubic root of 109656739 is about 478.6430701476.

The spelling of 109656739 in words is "one hundred nine million, six hundred fifty-six thousand, seven hundred thirty-nine".