249013312 has 14 divisors (see below), whose sum is σ = 494135918. Its totient is φ = 124506624.

The previous prime is 249013291. The next prime is 249013313. The reversal of 249013312 is 213310942.

It can be written as a sum of positive squares in only one way, i.e., 204604416 + 44408896 = 14304^2 + 6664^2 .

It is not an unprimeable number, because it can be changed into a prime (249013313) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1945353 + ... + 1945480.

Almost surely, 2^249013312 is an apocalyptic number.

It is an amenable number.

249013312 is a deficient number, since it is larger than the sum of its proper divisors (245122606).

249013312 is an equidigital number, since it uses as much as digits as its factorization.

249013312 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3890845 (or 3890835 counting only the distinct ones).

The product of its (nonzero) digits is 1296, while the sum is 25.

The square root of 249013312 is about 15780.1556392832. The cubic root of 249013312 is about 629.1306662519.

The spelling of 249013312 in words is "two hundred forty-nine million, thirteen thousand, three hundred twelve".