124816889 has 2 divisors, whose sum is σ = 124816890. Its totient is φ = 124816888.

The previous prime is 124816859. The next prime is 124816897. The reversal of 124816889 is 988618421.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 120012025 + 4804864 = 10955^2 + 2192^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-124816889 is a prime.

It is not a weakly prime, because it can be changed into another prime (124816829) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 62408444 + 62408445.

It is an arithmetic number, because the mean of its divisors is an integer number (62408445).

Almost surely, 2^124816889 is an apocalyptic number.

It is an amenable number.

124816889 is a deficient number, since it is larger than the sum of its proper divisors (1).

124816889 is an equidigital number, since it uses as much as digits as its factorization.

124816889 is an evil number, because the sum of its binary digits is even.

The product of its digits is 221184, while the sum is 47.

The square root of 124816889 is about 11172.1479134498. The cubic root of 124816889 is about 499.7557326864.

The spelling of 124816889 in words is "one hundred twenty-four million, eight hundred sixteen thousand, eight hundred eighty-nine".