122520925 has 12 divisors (see below), whose sum is σ = 152147380. Its totient is φ = 97873920.

The previous prime is 122520913. The next prime is 122520929. The reversal of 122520925 is 529025221.

It can be written as a sum of positive squares in 6 ways, for example, as 42436 + 122478489 = 206^2 + 11067^2 .

It is not a de Polignac number, because 122520925 - 2⁹ = 122520413 is a prime.

It is a super-2 number, since 2×122520925² = 30022754125711250, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 122520893 and 122520902.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (122520929) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 16039 + ... + 22411.

Almost surely, 2^122520925 is an apocalyptic number.

It is an amenable number.

122520925 is a deficient number, since it is larger than the sum of its proper divisors (29626455).

122520925 is an equidigital number, since it uses as much as digits as its factorization.

122520925 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7152 (or 7147 counting only the distinct ones).

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

The square root of 122520925 is about 11068.9170653682. The cubic root of 122520925 is about 496.6724708919.

The spelling of 122520925 in words is "one hundred twenty-two million, five hundred twenty thousand, nine hundred twenty-five".