122189525 has 6 divisors (see below), whose sum is σ = 151515042. Its totient is φ = 97751600.

The previous prime is 122189521. The next prime is 122189563. The reversal of 122189525 is 525981221.

It can be written as a sum of positive squares in 3 ways, for example, as 40883236 + 81306289 = 6394^2 + 9017^2 .

It is not a de Polignac number, because 122189525 - 2² = 122189521 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (122189521) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 2443766 + ... + 2443815.

It is an arithmetic number, because the mean of its divisors is an integer number (25252507).

Almost surely, 2^122189525 is an apocalyptic number.

It is an amenable number.

122189525 is a deficient number, since it is larger than the sum of its proper divisors (29325517).

122189525 is an equidigital number, since it uses as much as digits as its factorization.

122189525 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4887591 (or 4887586 counting only the distinct ones).

The product of its digits is 14400, while the sum is 35.

The square root of 122189525 is about 11053.9370814204. The cubic root of 122189525 is about 496.2242593352.

The spelling of 122189525 in words is "one hundred twenty-two million, one hundred eighty-nine thousand, five hundred twenty-five".