124205742 has 24 divisors (see below), whose sum is σ = 270486216. Its totient is φ = 41190576.

The previous prime is 124205693. The next prime is 124205761. The reversal of 124205742 is 247502421.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 13968 + ... + 21059.

It is an arithmetic number, because the mean of its divisors is an integer number (11270259).

Almost surely, 2^124205742 is an apocalyptic number.

124205742 is an abundant number, since it is smaller than the sum of its proper divisors (146280474).

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

124205742 is a wasteful number, since it uses less digits than its factorization.

124205742 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 35232 (or 35229 counting only the distinct ones).

The product of its (nonzero) digits is 4480, while the sum is 27.

The square root of 124205742 is about 11144.7629853667. The cubic root of 124205742 is about 498.9387383746.

The spelling of 124205742 in words is "one hundred twenty-four million, two hundred five thousand, seven hundred forty-two".