122561325 has 18 divisors (see below), whose sum is σ = 219521354. Its totient is φ = 65365920.

The previous prime is 122561323. The next prime is 122561339. The reversal of 122561325 is 523165221.

It is a happy number.

122561325 is a `hidden beast` number, since 1 + 2 + 25 + 613 + 25 = 666.

It can be written as a sum of positive squares in 3 ways, for example, as 281961 + 122279364 = 531^2 + 11058^2 .

It is not a de Polignac number, because 122561325 - 2¹ = 122561323 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 (122561323) by changing a digit.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 272134 + ... + 272583.

Almost surely, 2^122561325 is an apocalyptic number.

122561325 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

122561325 is a deficient number, since it is larger than the sum of its proper divisors (96960029).

122561325 is a wasteful number, since it uses less digits than its factorization.

122561325 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 544733 (or 544725 counting only the distinct ones).

The product of its digits is 3600, while the sum is 27.

The square root of 122561325 is about 11070.7418450617. The cubic root of 122561325 is about 496.7270557523.

The spelling of 122561325 in words is "one hundred twenty-two million, five hundred sixty-one thousand, three hundred twenty-five".