124642479 has 8 divisors (see below), whose sum is σ = 178973872. Its totient is φ = 76703040.

The previous prime is 124642471. The next prime is 124642513. The reversal of 124642479 is 974246421.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 124642479 - 2³ = 124642471 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (39), and also a Moran number because the ratio is a prime number: 3195961 = 124642479 / (1 + 2 + 4 + 6 + 4 + 2 + 4 + 7 + 9).

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (124642471) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1597942 + ... + 1598019.

It is an arithmetic number, because the mean of its divisors is an integer number (22371734).

Almost surely, 2^124642479 is an apocalyptic number.

124642479 is a deficient number, since it is larger than the sum of its proper divisors (54331393).

124642479 is a wasteful number, since it uses less digits than its factorization.

124642479 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3195977.

The product of its digits is 96768, while the sum is 39.

The square root of 124642479 is about 11164.3396132508. The cubic root of 124642479 is about 499.5228501342.

The spelling of 124642479 in words is "one hundred twenty-four million, six hundred forty-two thousand, four hundred seventy-nine".