249054849 has 6 divisors (see below), whose sum is σ = 359745906. Its totient is φ = 166036560.

The previous prime is 249054829. The next prime is 249054851. The reversal of 249054849 is 948450942.

It can be written as a sum of positive squares in only one way, i.e., 236944449 + 12110400 = 15393^2 + 3480^2 .

It is not a de Polignac number, because 249054849 - 2⁸ = 249054593 is a prime.

It is not an unprimeable number, because it can be changed into a prime (249054829) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 13836372 + ... + 13836389.

It is an arithmetic number, because the mean of its divisors is an integer number (59957651).

Almost surely, 2^249054849 is an apocalyptic number.

It is an amenable number.

249054849 is a deficient number, since it is larger than the sum of its proper divisors (110691057).

249054849 is a wasteful number, since it uses less digits than its factorization.

249054849 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 27672767 (or 27672764 counting only the distinct ones).

The product of its (nonzero) digits is 414720, while the sum is 45.

The square root of 249054849 is about 15781.4716994329. The cubic root of 249054849 is about 629.1656453024.

The spelling of 249054849 in words is "two hundred forty-nine million, fifty-four thousand, eight hundred forty-nine".