12145886 has 16 divisors (see below), whose sum is σ = 19276704. Its totient is φ = 5727744.

The previous prime is 12145877. The next prime is 12145897. The reversal of 12145886 is 68854121.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1550 + ... + 5166.

It is an arithmetic number, because the mean of its divisors is an integer number (1204794).

Almost surely, 2^12145886 is an apocalyptic number.

12145886 is a deficient number, since it is larger than the sum of its proper divisors (7130818).

12145886 is a wasteful number, since it uses less digits than its factorization.

12145886 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3715.

The product of its digits is 15360, while the sum is 35.

The square root of 12145886 is about 3485.0948337169. The cubic root of 12145886 is about 229.8668794885.

It can be divided in two parts, 12145 and 886, that added together give a palindrome (13031).

The spelling of 12145886 in words is "twelve million, one hundred forty-five thousand, eight hundred eighty-six".