124397554745 has 16 divisors (see below), whose sum is σ = 149578194240. Its totient is φ = 99317425344.

The previous prime is 124397554717. The next prime is 124397554759. The reversal of 124397554745 is 547455793421.

It is a cyclic number.

It is not a de Polignac number, because 124397554745 - 2⁶ = 124397554681 is a prime.

It is a Curzon number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 9535367 + ... + 9548403.

It is an arithmetic number, because the mean of its divisors is an integer number (9348637140).

Almost surely, 2^124397554745 is an apocalyptic number.

It is an amenable number.

124397554745 is a deficient number, since it is larger than the sum of its proper divisors (25180639495).

124397554745 is a wasteful number, since it uses less digits than its factorization.

124397554745 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16744.

The product of its digits is 21168000, while the sum is 56.

The spelling of 124397554745 in words is "one hundred twenty-four billion, three hundred ninety-seven million, five hundred fifty-four thousand, seven hundred forty-five".