124338989 has 4 divisors (see below), whose sum is σ = 129745056. Its totient is φ = 118932924.

The previous prime is 124338971. The next prime is 124338997. The reversal of 124338989 is 989833421.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 124338989 - 2²⁰ = 123290413 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (124338959) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2702999 + ... + 2703044.

It is an arithmetic number, because the mean of its divisors is an integer number (32436264).

Almost surely, 2^124338989 is an apocalyptic number.

It is an amenable number.

124338989 is a deficient number, since it is larger than the sum of its proper divisors (5406067).

124338989 is an equidigital number, since it uses as much as digits as its factorization.

124338989 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5406066.

The product of its digits is 373248, while the sum is 47.

The square root of 124338989 is about 11150.7393925246. The cubic root of 124338989 is about 499.1170938712.

The spelling of 124338989 in words is "one hundred twenty-four million, three hundred thirty-eight thousand, nine hundred eighty-nine".