124743621 has 8 divisors (see below), whose sum is σ = 166850784. Its totient is φ = 82899440.

The previous prime is 124743611. The next prime is 124743629. The reversal of 124743621 is 126347421.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-124743621 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (124743629) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 64635 + ... + 66536.

It is an arithmetic number, because the mean of its divisors is an integer number (20856348).

Almost surely, 2^124743621 is an apocalyptic number.

It is an amenable number.

124743621 is a deficient number, since it is larger than the sum of its proper divisors (42107163).

124743621 is a wasteful number, since it uses less digits than its factorization.

124743621 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 131491.

The product of its digits is 8064, while the sum is 30.

The square root of 124743621 is about 11168.8683849350. The cubic root of 124743621 is about 499.6579273593.

The spelling of 124743621 in words is "one hundred twenty-four million, seven hundred forty-three thousand, six hundred twenty-one".