12700465 has 4 divisors (see below), whose sum is σ = 15240564. Its totient is φ = 10160368.

The previous prime is 12700451. The next prime is 12700469. The reversal of 12700465 is 56400721.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 6105841 + 6594624 = 2471^2 + 2568^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-12700465 is a prime.

It is a super-2 number, since 2×12700465² = 322603622432450, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12700469) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1270042 + ... + 1270051.

It is an arithmetic number, because the mean of its divisors is an integer number (3810141).

Almost surely, 2^12700465 is an apocalyptic number.

It is an amenable number.

12700465 is a deficient number, since it is larger than the sum of its proper divisors (2540099).

12700465 is an equidigital number, since it uses as much as digits as its factorization.

12700465 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2540098.

The product of its (nonzero) digits is 1680, while the sum is 25.

The square root of 12700465 is about 3563.7711767172. The cubic root of 12700465 is about 233.3135028498.

The spelling of 12700465 in words is "twelve million, seven hundred thousand, four hundred sixty-five".