124785889 has 4 divisors (see below), whose sum is σ = 124814356. Its totient is φ = 124757424.

The previous prime is 124785883. The next prime is 124785911. The reversal of 124785889 is 988587421.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 988587421 = 59 ⋅16755719.

It can be written as a sum of positive squares in 2 ways, for example, as 61105489 + 63680400 = 7817^2 + 7980^2 .

It is a cyclic number.

It is not a de Polignac number, because 124785889 - 2⁹ = 124785377 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (124785883) 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, 6114 + ... + 16939.

It is an arithmetic number, because the mean of its divisors is an integer number (31203589).

Almost surely, 2^124785889 is an apocalyptic number.

It is an amenable number.

124785889 is a deficient number, since it is larger than the sum of its proper divisors (28467).

124785889 is an equidigital number, since it uses as much as digits as its factorization.

124785889 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28466.

The product of its digits is 1290240, while the sum is 52.

The square root of 124785889 is about 11170.7604485997. The cubic root of 124785889 is about 499.7143555122.

The spelling of 124785889 in words is "one hundred twenty-four million, seven hundred eighty-five thousand, eight hundred eighty-nine".