109877157 has 12 divisors (see below), whose sum is σ = 170920204. Its totient is φ = 67616640.

The previous prime is 109877153. The next prime is 109877189. The reversal of 109877157 is 751778901.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 10556001 + 99321156 = 3249^2 + 9966^2 .

It is not a de Polignac number, because 109877157 - 2² = 109877153 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (109877153) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 469444 + ... + 469677.

Almost surely, 2^109877157 is an apocalyptic number.

It is an amenable number.

109877157 is a deficient number, since it is larger than the sum of its proper divisors (61043047).

109877157 is a wasteful number, since it uses less digits than its factorization.

109877157 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 939140 (or 939137 counting only the distinct ones).

The product of its (nonzero) digits is 123480, while the sum is 45.

The square root of 109877157 is about 10482.2305355301. The cubic root of 109877157 is about 478.9635579396.

The spelling of 109877157 in words is "one hundred nine million, eight hundred seventy-seven thousand, one hundred fifty-seven".