12922258 has 4 divisors (see below), whose sum is σ = 19383390. Its totient is φ = 6461128.

The previous prime is 12922253. The next prime is 12922279. The reversal of 12922258 is 85222921.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 12271009 + 651249 = 3503^2 + 807^2 .

It is a Smith number, since the sum of its digits (31) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is not an unprimeable number, because it can be changed into a prime (12922253) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3230563 + ... + 3230566.

Almost surely, 2^12922258 is an apocalyptic number.

12922258 is a deficient number, since it is larger than the sum of its proper divisors (6461132).

12922258 is an equidigital number, since it uses as much as digits as its factorization.

12922258 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6461131.

The product of its digits is 5760, while the sum is 31.

The square root of 12922258 is about 3594.7542336021. The cubic root of 12922258 is about 234.6638198942.

The spelling of 12922258 in words is "twelve million, nine hundred twenty-two thousand, two hundred fifty-eight".