122615275725 has 72 divisors (see below), whose sum is σ = 227524024832. Its totient is φ = 63055843200.

The previous prime is 122615275681. The next prime is 122615275729. The reversal of 122615275725 is 527572516221.

122615275725 is a `hidden beast` number, since 1 + 2 + 2 + 615 + 2 + 7 + 5 + 7 + 25 = 666.

It is not a de Polignac number, because 122615275725 - 2⁶ = 122615275661 is a prime.

It is a super-3 number, since 3×122615275725³ (a number of 34 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (122615275729) by changing a digit.

It is a polite number, since it can be written in 71 ways as a sum of consecutive naturals, for example, 1900344 + ... + 1963806.

Almost surely, 2^122615275725 is an apocalyptic number.

122615275725 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

122615275725 is a deficient number, since it is larger than the sum of its proper divisors (104908749107).

122615275725 is a wasteful number, since it uses less digits than its factorization.

122615275725 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 63787 (or 63779 counting only the distinct ones).

The product of its digits is 588000, while the sum is 45.

The spelling of 122615275725 in words is "one hundred twenty-two billion, six hundred fifteen million, two hundred seventy-five thousand, seven hundred twenty-five".