249145311 has 16 divisors (see below), whose sum is σ = 341383680. Its totient is φ = 161535360.

The previous prime is 249145301. The next prime is 249145313. The reversal of 249145311 is 113541942.

It is not a de Polignac number, because 249145311 - 2⁵ = 249145279 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (249145313) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 26791 + ... + 34871.

It is an arithmetic number, because the mean of its divisors is an integer number (21336480).

Almost surely, 2^249145311 is an apocalyptic number.

249145311 is a deficient number, since it is larger than the sum of its proper divisors (92238369).

249145311 is a wasteful number, since it uses less digits than its factorization.

249145311 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8366.

The product of its digits is 4320, while the sum is 30.

The square root of 249145311 is about 15784.3375217334. The cubic root of 249145311 is about 629.2418115140.

The spelling of 249145311 in words is "two hundred forty-nine million, one hundred forty-five thousand, three hundred eleven".