124441391 has 2 divisors, whose sum is σ = 124441392. Its totient is φ = 124441390.

The previous prime is 124441367. The next prime is 124441399. The reversal of 124441391 is 193144421.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 124441391 - 2²² = 120247087 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (124441399) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 62220695 + 62220696.

It is an arithmetic number, because the mean of its divisors is an integer number (62220696).

Almost surely, 2^124441391 is an apocalyptic number.

124441391 is a deficient number, since it is larger than the sum of its proper divisors (1).

124441391 is an equidigital number, since it uses as much as digits as its factorization.

124441391 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 3456, while the sum is 29.

The square root of 124441391 is about 11155.3301609589. The cubic root of 124441391 is about 499.2540757474.

The spelling of 124441391 in words is "one hundred twenty-four million, four hundred forty-one thousand, three hundred ninety-one".