249814693 has 2 divisors, whose sum is σ = 249814694. Its totient is φ = 249814692.

The previous prime is 249814667. The next prime is 249814699. The reversal of 249814693 is 396418942.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 167495364 + 82319329 = 12942^2 + 9073^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-249814693 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (249814699) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 124907346 + 124907347.

It is an arithmetic number, because the mean of its divisors is an integer number (124907347).

Almost surely, 2^249814693 is an apocalyptic number.

It is an amenable number.

249814693 is a deficient number, since it is larger than the sum of its proper divisors (1).

249814693 is an equidigital number, since it uses as much as digits as its factorization.

249814693 is an evil number, because the sum of its binary digits is even.

The product of its digits is 373248, while the sum is 46.

The square root of 249814693 is about 15805.5272926910. The cubic root of 249814693 is about 629.8048383480.

The spelling of 249814693 in words is "two hundred forty-nine million, eight hundred fourteen thousand, six hundred ninety-three".