122309925 has 48 divisors (see below), whose sum is σ = 207986688. Its totient is φ = 63403200.

The previous prime is 122309909. The next prime is 122309927. The reversal of 122309925 is 529903221.

It is not a de Polignac number, because 122309925 - 2⁴ = 122309909 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (122309927) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 548364 + ... + 548586.

It is an arithmetic number, because the mean of its divisors is an integer number (4333056).

Almost surely, 2^122309925 is an apocalyptic number.

122309925 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

122309925 is a deficient number, since it is larger than the sum of its proper divisors (85676763).

122309925 is a wasteful number, since it uses less digits than its factorization.

122309925 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 410 (or 405 counting only the distinct ones).

The product of its (nonzero) digits is 9720, while the sum is 33.

The square root of 122309925 is about 11059.3817639143. The cubic root of 122309925 is about 496.3871914363.

It can be divided in two parts, 12230 and 9925, that added together give a triangular number (22155 = T₂₁₀).

The spelling of 122309925 in words is "one hundred twenty-two million, three hundred nine thousand, nine hundred twenty-five".