249899313 has 8 divisors (see below), whose sum is σ = 333455488. Its totient is φ = 166471344.

The previous prime is 249899311. The next prime is 249899333. The reversal of 249899313 is 313998942.

249899313 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 249899313 - 2¹ = 249899311 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (249899311) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 27406 + ... + 35367.

It is an arithmetic number, because the mean of its divisors is an integer number (41681936).

Almost surely, 2^249899313 is an apocalyptic number.

It is an amenable number.

249899313 is a deficient number, since it is larger than the sum of its proper divisors (83556175).

249899313 is a wasteful number, since it uses less digits than its factorization.

249899313 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 64103.

The product of its digits is 419904, while the sum is 48.

The square root of 249899313 is about 15808.2039776820. The cubic root of 249899313 is about 629.8759418107.

The spelling of 249899313 in words is "two hundred forty-nine million, eight hundred ninety-nine thousand, three hundred thirteen".