109154657 has 2 divisors, whose sum is σ = 109154658. Its totient is φ = 109154656.

The previous prime is 109154641. The next prime is 109154663. The reversal of 109154657 is 756451901.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 58232161 + 50922496 = 7631^2 + 7136^2 .

It is a cyclic number.

It is not a de Polignac number, because 109154657 - 2⁴ = 109154641 is a prime.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 109154657.

It is not a weakly prime, because it can be changed into another prime (109154957) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 54577328 + 54577329.

It is an arithmetic number, because the mean of its divisors is an integer number (54577329).

Almost surely, 2^109154657 is an apocalyptic number.

It is an amenable number.

109154657 is a deficient number, since it is larger than the sum of its proper divisors (1).

109154657 is an equidigital number, since it uses as much as digits as its factorization.

109154657 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 37800, while the sum is 38.

The square root of 109154657 is about 10447.7106104639. The cubic root of 109154657 is about 477.9114361809.

The spelling of 109154657 in words is "one hundred nine million, one hundred fifty-four thousand, six hundred fifty-seven".