12375665 has 8 divisors (see below), whose sum is σ = 15330048. Its totient is φ = 9581040.

The previous prime is 12375661. The next prime is 12375683. The reversal of 12375665 is 56657321.

12375665 = 202² + 203² + ... + 356².

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 12375665 - 2² = 12375661 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12375661) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 39767 + ... + 40076.

It is an arithmetic number, because the mean of its divisors is an integer number (1916256).

Almost surely, 2^12375665 is an apocalyptic number.

It is an amenable number.

12375665 is a deficient number, since it is larger than the sum of its proper divisors (2954383).

12375665 is an equidigital number, since it uses as much as digits as its factorization.

12375665 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 79879.

The product of its digits is 37800, while the sum is 35.

The square root of 12375665 is about 3517.9063375821. The cubic root of 12375665 is about 231.3073935947.

The spelling of 12375665 in words is "twelve million, three hundred seventy-five thousand, six hundred sixty-five".