124945492531 has 4 divisors (see below), whose sum is σ = 125086356432. Its totient is φ = 124804628632.

The previous prime is 124945492523. The next prime is 124945492549. The reversal of 124945492531 is 135294549421.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 135294549421 = 19 ⋅7120765759.

It is a cyclic number.

It is not a de Polignac number, because 124945492531 - 2³ = 124945492523 is a prime.

It is a super-2 number, since 2×124945492531² (a number of 23 digits) contains 22 as substring.

It is a Smith number, since the sum of its digits (49) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (124945492831) 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, 70430620 + ... + 70432393.

It is an arithmetic number, because the mean of its divisors is an integer number (31271589108).

Almost surely, 2^124945492531 is an apocalyptic number.

124945492531 is a deficient number, since it is larger than the sum of its proper divisors (140863901).

124945492531 is an equidigital number, since it uses as much as digits as its factorization.

124945492531 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 140863900.

The product of its digits is 1555200, while the sum is 49.

The spelling of 124945492531 in words is "one hundred twenty-four billion, nine hundred forty-five million, four hundred ninety-two thousand, five hundred thirty-one".