122920525 has 48 divisors (see below), whose sum is σ = 190487808. Its totient is φ = 76608000.

The previous prime is 122920507. The next prime is 122920537. The reversal of 122920525 is 525029221.

It is not a de Polignac number, because 122920525 - 2⁷ = 122920397 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 122920493 and 122920502.

It is a congruent number.

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, 161145 + ... + 161905.

It is an arithmetic number, because the mean of its divisors is an integer number (3968496).

Almost surely, 2^122920525 is an apocalyptic number.

It is an amenable number.

122920525 is a deficient number, since it is larger than the sum of its proper divisors (67567283).

122920525 is a wasteful number, since it uses less digits than its factorization.

122920525 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 862 (or 857 counting only the distinct ones).

The product of its (nonzero) digits is 3600, while the sum is 28.

The square root of 122920525 is about 11086.9529177317. The cubic root of 122920525 is about 497.2118479827.

Adding to 122920525 its reverse (525029221), we get a palindrome (647949746).

The spelling of 122920525 in words is "one hundred twenty-two million, nine hundred twenty thousand, five hundred twenty-five".