12158451 has 16 divisors (see below), whose sum is σ = 19072800. Its totient is φ = 7628544.

The previous prime is 12158449. The next prime is 12158501. The reversal of 12158451 is 15485121.

12158451 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 12158451 - 2¹ = 12158449 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is not an unprimeable number, because it can be changed into a prime (12158401) 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, 12786 + ... + 13703.

It is an arithmetic number, because the mean of its divisors is an integer number (1192050).

Almost surely, 2^12158451 is an apocalyptic number.

12158451 is a deficient number, since it is larger than the sum of its proper divisors (6914349).

12158451 is a wasteful number, since it uses less digits than its factorization.

12158451 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26515 (or 26509 counting only the distinct ones).

The product of its digits is 1600, while the sum is 27.

The square root of 12158451 is about 3486.8970446516. The cubic root of 12158451 is about 229.9461184432.

The spelling of 12158451 in words is "twelve million, one hundred fifty-eight thousand, four hundred fifty-one".