107872161 has 4 divisors (see below), whose sum is σ = 143829552. Its totient is φ = 71914772.

The previous prime is 107872153. The next prime is 107872169. The reversal of 107872161 is 161278701.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is an interprime number because it is at equal distance from previous prime (107872153) and next prime (107872169).

It is a cyclic number.

It is not a de Polignac number, because 107872161 - 2³ = 107872153 is a prime.

It is an alternating number because its digits alternate between odd and even.

It is not an unprimeable number, because it can be changed into a prime (107872169) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 17978691 + ... + 17978696.

It is an arithmetic number, because the mean of its divisors is an integer number (35957388).

Almost surely, 2^107872161 is an apocalyptic number.

It is an amenable number.

107872161 is a deficient number, since it is larger than the sum of its proper divisors (35957391).

107872161 is an equidigital number, since it uses as much as digits as its factorization.

107872161 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 35957390.

The product of its (nonzero) digits is 4704, while the sum is 33.

The square root of 107872161 is about 10386.1523674554. The cubic root of 107872161 is about 476.0323416224.

The spelling of 107872161 in words is "one hundred seven million, eight hundred seventy-two thousand, one hundred sixty-one".