249494899 has 2 divisors, whose sum is σ = 249494900. Its totient is φ = 249494898.

The previous prime is 249494897. The next prime is 249494911. The reversal of 249494899 is 998494942.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 249494899 - 2¹ = 249494897 is a prime.

Together with 249494897, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (249494897) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 124747449 + 124747450.

It is an arithmetic number, because the mean of its divisors is an integer number (124747450).

Almost surely, 2^249494899 is an apocalyptic number.

249494899 is a deficient number, since it is larger than the sum of its proper divisors (1).

249494899 is an equidigital number, since it uses as much as digits as its factorization.

249494899 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 6718464, while the sum is 58.

The square root of 249494899 is about 15795.4075287724. The cubic root of 249494899 is about 629.5359806471.

The spelling of 249494899 in words is "two hundred forty-nine million, four hundred ninety-four thousand, eight hundred ninety-nine".