12464157 has 4 divisors (see below), whose sum is σ = 16618880. Its totient is φ = 8309436.

The previous prime is 12464149. The next prime is 12464167. The reversal of 12464157 is 75146421.

12464157 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 not a de Polignac number, because 12464157 - 2³ = 12464149 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 (12464167) 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, 2077357 + ... + 2077362.

It is an arithmetic number, because the mean of its divisors is an integer number (4154720).

Almost surely, 2^12464157 is an apocalyptic number.

It is an amenable number.

12464157 is a deficient number, since it is larger than the sum of its proper divisors (4154723).

12464157 is an equidigital number, since it uses as much as digits as its factorization.

12464157 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4154722.

The product of its digits is 6720, while the sum is 30.

The square root of 12464157 is about 3530.4613013033. The cubic root of 12464157 is about 231.8574046945.

It can be divided in two parts, 12464 and 157, that added together give a palindrome (12621).

The spelling of 12464157 in words is "twelve million, four hundred sixty-four thousand, one hundred fifty-seven".