124620389 has 2 divisors, whose sum is σ = 124620390. Its totient is φ = 124620388.

The previous prime is 124620317. The next prime is 124620481. The reversal of 124620389 is 983026421.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 120450625 + 4169764 = 10975^2 + 2042^2 .

It is a cyclic number.

It is not a de Polignac number, because 124620389 - 2¹² = 124616293 is a prime.

It is a super-2 number, since 2×124620389² = 31060482709022642, which contains 22 as substring.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (124620289) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 62310194 + 62310195.

It is an arithmetic number, because the mean of its divisors is an integer number (62310195).

Almost surely, 2^124620389 is an apocalyptic number.

It is an amenable number.

124620389 is a deficient number, since it is larger than the sum of its proper divisors (1).

124620389 is an equidigital number, since it uses as much as digits as its factorization.

124620389 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 20736, while the sum is 35.

The square root of 124620389 is about 11163.3502587709. The cubic root of 124620389 is about 499.4933387622.

The spelling of 124620389 in words is "one hundred twenty-four million, six hundred twenty thousand, three hundred eighty-nine".