124539942 has 16 divisors (see below), whose sum is σ = 254380032. Its totient is φ = 40629960.

The previous prime is 124539937. The next prime is 124539959. The reversal of 124539942 is 249935421.

It is a self number, because there is not a number n which added to its sum of digits gives 124539942.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 220534 + ... + 221097.

It is an arithmetic number, because the mean of its divisors is an integer number (15898752).

Almost surely, 2^124539942 is an apocalyptic number.

124539942 is an abundant number, since it is smaller than the sum of its proper divisors (129840090).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

124539942 is a wasteful number, since it uses less digits than its factorization.

124539942 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 441683.

The product of its digits is 77760, while the sum is 39.

The square root of 124539942 is about 11159.7465024973. The cubic root of 124539942 is about 499.3858352455.

The spelling of 124539942 in words is "one hundred twenty-four million, five hundred thirty-nine thousand, nine hundred forty-two".