124279989 has 8 divisors (see below), whose sum is σ = 167415360. Its totient is φ = 81998976.

The previous prime is 124279963. The next prime is 124280021. The reversal of 124279989 is 989972421.

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

It is not a de Polignac number, because 124279989 - 2¹⁹ = 123755701 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (124279919) 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, 213249 + ... + 213830.

It is an arithmetic number, because the mean of its divisors is an integer number (20926920).

Almost surely, 2^124279989 is an apocalyptic number.

It is an amenable number.

124279989 is a deficient number, since it is larger than the sum of its proper divisors (43135371).

124279989 is an equidigital number, since it uses as much as digits as its factorization.

124279989 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 427179.

The product of its digits is 653184, while the sum is 51.

The square root of 124279989 is about 11148.0935141395. The cubic root of 124279989 is about 499.0381361558.

The spelling of 124279989 in words is "one hundred twenty-four million, two hundred seventy-nine thousand, nine hundred eighty-nine".