12465997 has 4 divisors (see below), whose sum is σ = 12531456. Its totient is φ = 12400540.

The previous prime is 12465989. The next prime is 12466007. The reversal of 12465997 is 79956421.

It is a happy number.

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 12465997 - 2³ = 12465989 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12465907) 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, 32443 + ... + 32824.

It is an arithmetic number, because the mean of its divisors is an integer number (3132864).

Almost surely, 2^12465997 is an apocalyptic number.

It is an amenable number.

12465997 is a deficient number, since it is larger than the sum of its proper divisors (65459).

12465997 is an equidigital number, since it uses as much as digits as its factorization.

12465997 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 65458.

The product of its digits is 136080, while the sum is 43.

The square root of 12465997 is about 3530.7218808623. The cubic root of 12465997 is about 231.8688133183.

It can be divided in two parts, 12465 and 997, that multiplied together give a triangular number (12427605 = T₄₉₈₅).

The spelling of 12465997 in words is "twelve million, four hundred sixty-five thousand, nine hundred ninety-seven".