124249389 has 16 divisors (see below), whose sum is σ = 181009920. Its totient is φ = 75184560.

The previous prime is 124249373. The next prime is 124249397. The reversal of 124249389 is 983942421.

It is not a de Polignac number, because 124249389 - 2⁴ = 124249373 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 124249389.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (124249399) by changing a digit.

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 15 ways as a sum of consecutive naturals, for example, 21402 + ... + 26580.

It is an arithmetic number, because the mean of its divisors is an integer number (11313120).

Almost surely, 2^124249389 is an apocalyptic number.

It is an amenable number.

124249389 is a deficient number, since it is larger than the sum of its proper divisors (56760531).

124249389 is a wasteful number, since it uses less digits than its factorization.

124249389 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5920.

The product of its digits is 124416, while the sum is 42.

The square root of 124249389 is about 11146.7209976746. The cubic root of 124249389 is about 498.9971753635.

The spelling of 124249389 in words is "one hundred twenty-four million, two hundred forty-nine thousand, three hundred eighty-nine".