124565431 has 2 divisors, whose sum is σ = 124565432. Its totient is φ = 124565430.

The previous prime is 124565417. The next prime is 124565459. The reversal of 124565431 is 134565421.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 124565431 - 2⁷ = 124565303 is a prime.

It is a super-2 number, since 2×124565431² = 31033093200431522, which contains 22 as substring.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 124565393 and 124565402.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (124515431) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 62282715 + 62282716.

It is an arithmetic number, because the mean of its divisors is an integer number (62282716).

Almost surely, 2^124565431 is an apocalyptic number.

124565431 is a deficient number, since it is larger than the sum of its proper divisors (1).

124565431 is an equidigital number, since it uses as much as digits as its factorization.

124565431 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 14400, while the sum is 31.

The square root of 124565431 is about 11160.8884502982. Note that the first 3 decimals coincide. The cubic root of 124565431 is about 499.4199018993.

The spelling of 124565431 in words is "one hundred twenty-four million, five hundred sixty-five thousand, four hundred thirty-one".