124999589 has 16 divisors (see below), whose sum is σ = 155494080. Its totient is φ = 98722560.

The previous prime is 124999571. The next prime is 124999591. The reversal of 124999589 is 985999421.

It is a cyclic number.

It is not a de Polignac number, because 124999589 - 2¹⁶ = 124934053 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 (124999289) 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, 23279 + ... + 28140.

It is an arithmetic number, because the mean of its divisors is an integer number (9718380).

Almost surely, 2^124999589 is an apocalyptic number.

It is an amenable number.

124999589 is a deficient number, since it is larger than the sum of its proper divisors (30494491).

124999589 is a wasteful number, since it uses less digits than its factorization.

124999589 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 51460.

The product of its digits is 2099520, while the sum is 56.

The square root of 124999589 is about 11180.3215070051. The cubic root of 124999589 is about 499.9994519994. Note that the first 3 decimals are identical.

The spelling of 124999589 in words is "one hundred twenty-four million, nine hundred ninety-nine thousand, five hundred eighty-nine".