122425515 has 48 divisors (see below), whose sum is σ = 219098880. Its totient is φ = 63201600.

The previous prime is 122425487. The next prime is 122425547. The reversal of 122425515 is 515524221.

122425515 is a `hidden beast` number, since 122 + 4 + 25 + 515 = 666.

It is not a de Polignac number, because 122425515 - 2¹⁷ = 122294443 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 291976 + ... + 292394.

It is an arithmetic number, because the mean of its divisors is an integer number (4564560).

Almost surely, 2^122425515 is an apocalyptic number.

122425515 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

122425515 is a deficient number, since it is larger than the sum of its proper divisors (96673365).

122425515 is a wasteful number, since it uses less digits than its factorization.

122425515 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 624 (or 621 counting only the distinct ones).

The product of its digits is 4000, while the sum is 27.

The square root of 122425515 is about 11064.6064096289. The cubic root of 122425515 is about 496.5435138005.

Adding to 122425515 its reverse (515524221), we get a palindrome (637949736).

The spelling of 122425515 in words is "one hundred twenty-two million, four hundred twenty-five thousand, five hundred fifteen".