12145922 has 16 divisors (see below), whose sum is σ = 19763352. Its totient is φ = 5575680.

The previous prime is 12145907. The next prime is 12145937. The reversal of 12145922 is 22954121.

It is an interprime number because it is at equal distance from previous prime (12145907) and next prime (12145937).

It can be written as a sum of positive squares in 4 ways, for example, as 11566801 + 579121 = 3401^2 + 761^2 .

It is a junction number, because it is equal to n+sod(n) for n = 12145891 and 12145900.

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, 2963 + ... + 5750.

Almost surely, 2^12145922 is an apocalyptic number.

12145922 is a deficient number, since it is larger than the sum of its proper divisors (7617430).

12145922 is a wasteful number, since it uses less digits than its factorization.

12145922 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8773.

The product of its digits is 1440, while the sum is 26.

The square root of 12145922 is about 3485.0999985653. The cubic root of 12145922 is about 229.8671065942.

The spelling of 12145922 in words is "twelve million, one hundred forty-five thousand, nine hundred twenty-two".