107166921 has 4 divisors (see below), whose sum is σ = 142889232. Its totient is φ = 71444612.

The previous prime is 107166893. The next prime is 107166923. The reversal of 107166921 is 129661701.

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 a cyclic number.

It is not a de Polignac number, because 107166921 - 2¹³ = 107158729 is a prime.

It is a super-2 number, since 2×107166921² = 22969497913240482, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (107166923) 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, 17861151 + ... + 17861156.

It is an arithmetic number, because the mean of its divisors is an integer number (35722308).

Almost surely, 2^107166921 is an apocalyptic number.

It is an amenable number.

107166921 is a deficient number, since it is larger than the sum of its proper divisors (35722311).

107166921 is an equidigital number, since it uses as much as digits as its factorization.

107166921 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 35722310.

The product of its (nonzero) digits is 4536, while the sum is 33.

The square root of 107166921 is about 10352.1457196081. The cubic root of 107166921 is about 474.9926809583.

The spelling of 107166921 in words is "one hundred seven million, one hundred sixty-six thousand, nine hundred twenty-one".