124525000161 has 15 divisors (see below), whose sum is σ = 186023571811. Its totient is φ = 83014549488.

The previous prime is 124525000139. The next prime is 124525000169. The reversal of 124525000161 is 161000525421.

The square root of 124525000161 is 352881.

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

124525000161 is a `hidden beast` number, since 1 + 2 + 452 + 50 + 0 + 0 + 161 = 666.

It can be written as a sum of positive squares in only one way, i.e., 119495353761 + 5029646400 = 345681^2 + 70920^2 .

It is not a de Polignac number, because 124525000161 - 2⁵ = 124525000129 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (124525000169) by changing a digit.

It is a polite number, since it can be written in 14 ways as a sum of consecutive naturals, for example, 3156325 + ... + 3195533.

Almost surely, 2^124525000161 is an apocalyptic number.

124525000161 is the 352881-st square number.

124525000161 is the 176441-st centered octagonal number.

It is an amenable number.

124525000161 is a deficient number, since it is larger than the sum of its proper divisors (61498571650).

124525000161 is an frugal number, since it uses more digits than its factorization.

124525000161 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 78430 (or 39212 counting only the distinct ones).

The product of its (nonzero) digits is 2400, while the sum is 27.

Adding to 124525000161 its reverse (161000525421), we get a palindrome (285525525582).

The spelling of 124525000161 in words is "one hundred twenty-four billion, five hundred twenty-five million, one hundred sixty-one", and thus it is an aban number.