109816537 has 2 divisors, whose sum is σ = 109816538. Its totient is φ = 109816536.

The previous prime is 109816489. The next prime is 109816541. The reversal of 109816537 is 735618901.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 109327936 + 488601 = 10456^2 + 699^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-109816537 is a prime.

It is a zygodrome in base 15.

It is a self number, because there is not a number n which added to its sum of digits gives 109816537.

It is not a weakly prime, because it can be changed into another prime (109816337) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 54908268 + 54908269.

It is an arithmetic number, because the mean of its divisors is an integer number (54908269).

Almost surely, 2^109816537 is an apocalyptic number.

It is an amenable number.

109816537 is a deficient number, since it is larger than the sum of its proper divisors (1).

109816537 is an equidigital number, since it uses as much as digits as its factorization.

109816537 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 45360, while the sum is 40.

The square root of 109816537 is about 10479.3385764561. The cubic root of 109816537 is about 478.8754592153.

The spelling of 109816537 in words is "one hundred nine million, eight hundred sixteen thousand, five hundred thirty-seven".