124908857503 has 4 divisors (see below), whose sum is σ = 124910044848. Its totient is φ = 124907670160.

The previous prime is 124908857477. The next prime is 124908857537. The reversal of 124908857503 is 305758809421.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-124908857503 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (124908851503) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 418678 + ... + 652003.

It is an arithmetic number, because the mean of its divisors is an integer number (31227511212).

Almost surely, 2^124908857503 is an apocalyptic number.

124908857503 is a deficient number, since it is larger than the sum of its proper divisors (1187345).

124908857503 is a wasteful number, since it uses less digits than its factorization.

124908857503 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1187344.

The product of its (nonzero) digits is 2419200, while the sum is 52.

The spelling of 124908857503 in words is "one hundred twenty-four billion, nine hundred eight million, eight hundred fifty-seven thousand, five hundred three".