124972747 has 4 divisors (see below), whose sum is σ = 131550280. Its totient is φ = 118395216.

The previous prime is 124972739. The next prime is 124972753. The reversal of 124972747 is 747279421.

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

It is a cyclic number.

It is not a de Polignac number, because 124972747 - 2³ = 124972739 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (124972247) 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, 3288738 + ... + 3288775.

It is an arithmetic number, because the mean of its divisors is an integer number (32887570).

Almost surely, 2^124972747 is an apocalyptic number.

124972747 is a deficient number, since it is larger than the sum of its proper divisors (6577533).

124972747 is an equidigital number, since it uses as much as digits as its factorization.

124972747 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6577532.

The product of its digits is 197568, while the sum is 43.

The square root of 124972747 is about 11179.1210298485. The cubic root of 124972747 is about 499.9636600255.

The spelling of 124972747 in words is "one hundred twenty-four million, nine hundred seventy-two thousand, seven hundred forty-seven".