124950989 has 2 divisors, whose sum is σ = 124950990. Its totient is φ = 124950988.

The previous prime is 124950977. The next prime is 124951031. The reversal of 124950989 is 989059421.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 124657225 + 293764 = 11165^2 + 542^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-124950989 is a prime.

It is a super-2 number, since 2×124950989² = 31225499304156242, which contains 22 as substring.

It is a Sophie Germain prime.

It is a Curzon number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (124950919) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 62475494 + 62475495.

It is an arithmetic number, because the mean of its divisors is an integer number (62475495).

Almost surely, 2^124950989 is an apocalyptic number.

It is an amenable number.

124950989 is a deficient number, since it is larger than the sum of its proper divisors (1).

124950989 is an equidigital number, since it uses as much as digits as its factorization.

124950989 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 233280, while the sum is 47.

The square root of 124950989 is about 11178.1478340555. The cubic root of 124950989 is about 499.9346434574.

The spelling of 124950989 in words is "one hundred twenty-four million, nine hundred fifty thousand, nine hundred eighty-nine".