122425251 has 16 divisors (see below), whose sum is σ = 183434496. Its totient is φ = 72062496.

The previous prime is 122425243. The next prime is 122425253. The reversal of 122425251 is 152524221.

122425251 = 324² + 325² + ... + 737².

122425251 is nontrivially palindromic in base 12.

It is not a de Polignac number, because 122425251 - 2³ = 122425243 is a prime.

It is not an unprimeable number, because it can be changed into a prime (122425253) 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, 67345 + ... + 69138.

It is an arithmetic number, because the mean of its divisors is an integer number (11464656).

Almost surely, 2^122425251 is an apocalyptic number.

122425251 is a deficient number, since it is larger than the sum of its proper divisors (61009245).

122425251 is a wasteful number, since it uses less digits than its factorization.

122425251 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 136522.

The product of its digits is 1600, while the sum is 24.

The square root of 122425251 is about 11064.5944796906. The cubic root of 122425251 is about 496.5431568826.

Adding to 122425251 its reverse (152524221), we get a palindrome (274949472).

The spelling of 122425251 in words is "one hundred twenty-two million, four hundred twenty-five thousand, two hundred fifty-one".