124945589 has 4 divisors (see below), whose sum is σ = 125784300. Its totient is φ = 124106880.

The previous prime is 124945547. The next prime is 124945619. The reversal of 124945589 is 985549421.

It is a happy number.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 61105489 + 63840100 = 7817^2 + 7990^2 .

It is a cyclic number.

It is not a de Polignac number, because 124945589 - 2⁸ = 124945333 is a prime.

It is a super-2 number, since 2×124945589² = 31222800421113842, which contains 22 as substring.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (124945519) 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, 419132 + ... + 419429.

It is an arithmetic number, because the mean of its divisors is an integer number (31446075).

Almost surely, 2^124945589 is an apocalyptic number.

It is an amenable number.

124945589 is a deficient number, since it is larger than the sum of its proper divisors (838711).

124945589 is an equidigital number, since it uses as much as digits as its factorization.

124945589 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 838710.

The product of its digits is 518400, while the sum is 47.

The square root of 124945589 is about 11177.9062887466. The cubic root of 124945589 is about 499.9274414710.

The spelling of 124945589 in words is "one hundred twenty-four million, nine hundred forty-five thousand, five hundred eighty-nine".