124472642 has 42 divisors (see below), whose sum is σ = 227709363. Its totient is φ = 51026052.

The previous prime is 124472627. The next prime is 124472651. The reversal of 124472642 is 246274421.

It can be written as a sum of positive squares in only one way, i.e., 62236321 + 62236321 = 7889^2 + 7889^2 .

It is an ABA number since it can be written as A⋅B^A, here for A=2, B=7889.

Its product of digits (21504) is a multiple of the sum of its prime divisors (32).

It is a junction number, because it is equal to n+sod(n) for n = 124472599 and 124472608.

It is an unprimeable number.

It is a polite number, since it can be written in 20 ways as a sum of consecutive naturals, for example, 5411843 + ... + 5411865.

Almost surely, 2^124472642 is an apocalyptic number.

124472642 is a deficient number, since it is larger than the sum of its proper divisors (103236721).

124472642 is an frugal number, since it uses more digits than its factorization.

124472642 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 90 (or 32 counting only the distinct ones).

The product of its digits is 21504, while the sum is 32.

The square root of 124472642 is about 11156.7307935613. The cubic root of 124472642 is about 499.2958648529.

Multiplying 124472642 by its sum of digits (32), we get a square (3983124544 = 63112²).

The spelling of 124472642 in words is "one hundred twenty-four million, four hundred seventy-two thousand, six hundred forty-two".