124997000018 has 18 divisors (see below), whose sum is σ = 206099163543. Its totient is φ = 56814318220.

The previous prime is 124996999891. The next prime is 124997000047. The reversal of 124997000018 is 810000799421.

It can be written as a sum of positive squares in only one way, i.e., 62498500009 + 62498500009 = 249997^2 + 249997^2 .

It is an ABA number since it can be written as A⋅B^A, here for A=2, B=249997.

It is a Duffinian number.

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 5488571 + ... + 5511297.

Almost surely, 2^124997000018 is an apocalyptic number.

124997000018 is a deficient number, since it is larger than the sum of its proper divisors (81102163525).

124997000018 is an frugal number, since it uses more digits than its factorization.

124997000018 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 45478 (or 22740 counting only the distinct ones).

The product of its (nonzero) digits is 36288, while the sum is 41.

Adding to 124997000018 its reverse (810000799421), we get a palindrome (934997799439).

The spelling of 124997000018 in words is "one hundred twenty-four billion, nine hundred ninety-seven million, eighteen", and thus it is an aban number.