249494911 has 2 divisors, whose sum is σ = 249494912. Its totient is φ = 249494910.

The previous prime is 249494899. The next prime is 249494939. The reversal of 249494911 is 119494942.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 249494911 - 2⁵ = 249494879 is a prime.

It is a super-2 number, since 2×249494911² = 124495421229795842, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (249494951) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 124747455 + 124747456.

It is an arithmetic number, because the mean of its divisors is an integer number (124747456).

Almost surely, 2^249494911 is an apocalyptic number.

249494911 is a deficient number, since it is larger than the sum of its proper divisors (1).

249494911 is an equidigital number, since it uses as much as digits as its factorization.

249494911 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 93312, while the sum is 43.

The square root of 249494911 is about 15795.4079086296. The cubic root of 249494911 is about 629.5359907401.

The spelling of 249494911 in words is "two hundred forty-nine million, four hundred ninety-four thousand, nine hundred eleven".