109118731 has 2 divisors, whose sum is σ = 109118732. Its totient is φ = 109118730.

The previous prime is 109118657. The next prime is 109118741. The reversal of 109118731 is 137811901.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-109118731 is a prime.

It is a super-2 number, since 2×109118731² = 23813794910100722, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 109118693 and 109118702.

It is not a weakly prime, because it can be changed into another prime (109118741) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 54559365 + 54559366.

It is an arithmetic number, because the mean of its divisors is an integer number (54559366).

Almost surely, 2^109118731 is an apocalyptic number.

109118731 is a deficient number, since it is larger than the sum of its proper divisors (1).

109118731 is an equidigital number, since it uses as much as digits as its factorization.

109118731 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1512, while the sum is 31.

The square root of 109118731 is about 10445.9911449321. The cubic root of 109118731 is about 477.8589988693.

The spelling of 109118731 in words is "one hundred nine million, one hundred eighteen thousand, seven hundred thirty-one".