124770798907225 has 9 divisors (see below), whose sum is σ = 154715859899517. Its totient is φ = 99816594445440.

The previous prime is 124770798907219. The next prime is 124770798907229. The reversal of 124770798907225 is 522709897077421.

The square root of 124770798907225 is 11170085.

It is a perfect power (a square), and thus also a powerful number.

It can be written as a sum of positive squares in 4 ways, for example, as 33382475951049 + 91388322956176 = 5777757^2 + 9559724^2 .

It is not a de Polignac number, because 124770798907225 - 2³ = 124770798907217 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (124770798907229) by changing a digit.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 54733417 + ... + 56967433.

Almost surely, 2^{124770798907225} is an apocalyptic number.

124770798907225 is the 11170085-th square number.

124770798907225 is the 5585043-rd centered octagonal number.

It is an amenable number.

124770798907225 is a deficient number, since it is larger than the sum of its proper divisors (29945060992292).

124770798907225 is an frugal number, since it uses more digits than its factorization.

124770798907225 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4468044 (or 2234022 counting only the distinct ones).

The product of its (nonzero) digits is 248935680, while the sum is 70.

The spelling of 124770798907225 in words is "one hundred twenty-four trillion, seven hundred seventy billion, seven hundred ninety-eight million, nine hundred seven thousand, two hundred twenty-five".