124440431 has 2 divisors, whose sum is σ = 124440432. Its totient is φ = 124440430.

The previous prime is 124440413. The next prime is 124440439. The reversal of 124440431 is 134044421.

It is a happy number.

Together with previous prime (124440413) it forms an Ormiston pair, because they use the same digits, order apart.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 124440431 - 2²² = 120246127 is a prime.

It is a super-2 number, since 2×124440431² = 30970841734931522, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 124440397 and 124440406.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (124440439) 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, 62220215 + 62220216.

It is an arithmetic number, because the mean of its divisors is an integer number (62220216).

Almost surely, 2^124440431 is an apocalyptic number.

124440431 is a deficient number, since it is larger than the sum of its proper divisors (1).

124440431 is an equidigital number, since it uses as much as digits as its factorization.

124440431 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1536, while the sum is 23.

The square root of 124440431 is about 11155.2871321181. The cubic root of 124440431 is about 499.2527919164.

Adding to 124440431 its reverse (134044421), we get a palindrome (258484852).

The spelling of 124440431 in words is "one hundred twenty-four million, four hundred forty thousand, four hundred thirty-one".