122757725 has 12 divisors (see below), whose sum is σ = 157469460. Its totient is φ = 94819200.

The previous prime is 122757707. The next prime is 122757743. The reversal of 122757725 is 527757221.

It is an interprime number because it is at equal distance from previous prime (122757707) and next prime (122757743).

It can be written as a sum of positive squares in 6 ways, for example, as 5555449 + 117202276 = 2357^2 + 10826^2 .

It is not a de Polignac number, because 122757725 - 2¹⁴ = 122741341 is a prime.

It is a hoax number, since the sum of its digits (38) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is an unprimeable number.

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 11 ways as a sum of consecutive naturals, for example, 83936 + ... + 85385.

It is an arithmetic number, because the mean of its divisors is an integer number (13122455).

Almost surely, 2^122757725 is an apocalyptic number.

It is an amenable number.

122757725 is a deficient number, since it is larger than the sum of its proper divisors (34711735).

122757725 is a wasteful number, since it uses less digits than its factorization.

122757725 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 169360 (or 169355 counting only the distinct ones).

The product of its digits is 68600, while the sum is 38.

The square root of 122757725 is about 11079.6085219650. The cubic root of 122757725 is about 496.9922430766.

The spelling of 122757725 in words is "one hundred twenty-two million, seven hundred fifty-seven thousand, seven hundred twenty-five".