123664107 has 16 divisors (see below), whose sum is σ = 190713600. Its totient is φ = 69812832.

The previous prime is 123664081. The next prime is 123664129. The reversal of 123664107 is 701466321.

It is not a de Polignac number, because 123664107 - 2⁶ = 123664043 is a prime.

It is a super-2 number, since 2×123664107² = 30585622720214898, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (123664147) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 33732 + ... + 37217.

It is an arithmetic number, because the mean of its divisors is an integer number (11919600).

Almost surely, 2^123664107 is an apocalyptic number.

123664107 is a deficient number, since it is larger than the sum of its proper divisors (67049493).

123664107 is an equidigital number, since it uses as much as digits as its factorization.

123664107 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 71042.

The product of its (nonzero) digits is 6048, while the sum is 30.

The square root of 123664107 is about 11120.4364572619. The cubic root of 123664107 is about 498.2124261086.

The spelling of 123664107 in words is "one hundred twenty-three million, six hundred sixty-four thousand, one hundred seven".