124311491 has 2 divisors, whose sum is σ = 124311492. Its totient is φ = 124311490.

The previous prime is 124311479. The next prime is 124311511. The reversal of 124311491 is 194113421.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 124311491 - 2²⁶ = 57202627 is a prime.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 124311491.

It is not a weakly prime, because it can be changed into another prime (124311401) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 62155745 + 62155746.

It is an arithmetic number, because the mean of its divisors is an integer number (62155746).

Almost surely, 2^124311491 is an apocalyptic number.

124311491 is a deficient number, since it is larger than the sum of its proper divisors (1).

124311491 is an equidigital number, since it uses as much as digits as its factorization.

124311491 is an evil number, because the sum of its binary digits is even.

The product of its digits is 864, while the sum is 26.

The square root of 124311491 is about 11149.5063119405. The cubic root of 124311491 is about 499.0802973312.

The spelling of 124311491 in words is "one hundred twenty-four million, three hundred eleven thousand, four hundred ninety-one".