124020387 has 12 divisors (see below), whose sum is σ = 180431160. Its totient is φ = 82084608.

The previous prime is 124020349. The next prime is 124020397. The reversal of 124020387 is 783020421.

It is not a de Polignac number, because 124020387 - 2¹⁴ = 124004003 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 124020387.

It is not an unprimeable number, because it can be changed into a prime (124020317) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 48318 + ... + 50819.

It is an arithmetic number, because the mean of its divisors is an integer number (15035930).

Almost surely, 2^124020387 is an apocalyptic number.

124020387 is a deficient number, since it is larger than the sum of its proper divisors (56410773).

124020387 is a wasteful number, since it uses less digits than its factorization.

124020387 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 99282 (or 99279 counting only the distinct ones).

The product of its (nonzero) digits is 2688, while the sum is 27.

The square root of 124020387 is about 11136.4440913606. Note that the first 3 decimals coincide. The cubic root of 124020387 is about 498.6904223406.

The spelling of 124020387 in words is "one hundred twenty-four million, twenty thousand, three hundred eighty-seven".