124994689 has 2 divisors, whose sum is σ = 124994690. Its totient is φ = 124994688.

The previous prime is 124994687. The next prime is 124994707. The reversal of 124994689 is 986499421.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 98903025 + 26091664 = 9945^2 + 5108^2 .

It is a cyclic number.

It is not a de Polignac number, because 124994689 - 2¹ = 124994687 is a prime.

Together with 124994687, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (124994687) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 62497344 + 62497345.

It is an arithmetic number, because the mean of its divisors is an integer number (62497345).

Almost surely, 2^124994689 is an apocalyptic number.

It is an amenable number.

124994689 is a deficient number, since it is larger than the sum of its proper divisors (1).

124994689 is an equidigital number, since it uses as much as digits as its factorization.

124994689 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1119744, while the sum is 52.

The square root of 124994689 is about 11180.1023698354. The cubic root of 124994689 is about 499.9929185664.

The spelling of 124994689 in words is "one hundred twenty-four million, nine hundred ninety-four thousand, six hundred eighty-nine".