124391693 has 2 divisors, whose sum is σ = 124391694. Its totient is φ = 124391692.

The previous prime is 124391681. The next prime is 124391699. The reversal of 124391693 is 396193421.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 120077764 + 4313929 = 10958^2 + 2077^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-124391693 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (124391699) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 62195846 + 62195847.

It is an arithmetic number, because the mean of its divisors is an integer number (62195847).

Almost surely, 2^124391693 is an apocalyptic number.

It is an amenable number.

124391693 is a deficient number, since it is larger than the sum of its proper divisors (1).

124391693 is an equidigital number, since it uses as much as digits as its factorization.

124391693 is an evil number, because the sum of its binary digits is even.

The product of its digits is 34992, while the sum is 38.

The square root of 124391693 is about 11153.1023935047. The cubic root of 124391693 is about 499.1876047428.

The spelling of 124391693 in words is "one hundred twenty-four million, three hundred ninety-one thousand, six hundred ninety-three".