109177157 has 2 divisors, whose sum is σ = 109177158. Its totient is φ = 109177156.

The previous prime is 109177153. The next prime is 109177169. The reversal of 109177157 is 751771901.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 93818596 + 15358561 = 9686^2 + 3919^2 .

It is a cyclic number.

It is not a de Polignac number, because 109177157 - 2² = 109177153 is a prime.

It is a super-2 number, since 2×109177157² = 23839303221205298, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 109177157.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (109177151) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 54588578 + 54588579.

It is an arithmetic number, because the mean of its divisors is an integer number (54588579).

Almost surely, 2^109177157 is an apocalyptic number.

It is an amenable number.

109177157 is a deficient number, since it is larger than the sum of its proper divisors (1).

109177157 is an equidigital number, since it uses as much as digits as its factorization.

109177157 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 15435, while the sum is 38.

The square root of 109177157 is about 10448.7873459077. The cubic root of 109177157 is about 477.9442711475.

The spelling of 109177157 in words is "one hundred nine million, one hundred seventy-seven thousand, one hundred fifty-seven".