124229989 has 8 divisors (see below), whose sum is σ = 138102272. Its totient is φ = 110974320.

The previous prime is 124229983. The next prime is 124230031. The reversal of 124229989 is 989922421.

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

It is a cyclic number.

It is not a de Polignac number, because 124229989 - 2⁹ = 124229477 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (124229983) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 153729 + ... + 154534.

It is an arithmetic number, because the mean of its divisors is an integer number (17262784).

Almost surely, 2^124229989 is an apocalyptic number.

It is an amenable number.

124229989 is a deficient number, since it is larger than the sum of its proper divisors (13872283).

124229989 is a wasteful number, since it uses less digits than its factorization.

124229989 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 308307.

The product of its digits is 186624, while the sum is 46.

The square root of 124229989 is about 11145.8507526344. The cubic root of 124229989 is about 498.9712032731.

The spelling of 124229989 in words is "one hundred twenty-four million, two hundred twenty-nine thousand, nine hundred eighty-nine".