249371213 has 8 divisors (see below), whose sum is σ = 306918528. Its totient is φ = 197304624.

The previous prime is 249371197. The next prime is 249371251. The reversal of 249371213 is 312173942.

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

It is a cyclic number.

It is not a de Polignac number, because 249371213 - 2⁴ = 249371197 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 249371213.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (249371263) 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, 1370081 + ... + 1370262.

It is an arithmetic number, because the mean of its divisors is an integer number (38364816).

Almost surely, 2^249371213 is an apocalyptic number.

It is an amenable number.

249371213 is a deficient number, since it is larger than the sum of its proper divisors (57547315).

249371213 is a wasteful number, since it uses less digits than its factorization.

249371213 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2740363.

The product of its digits is 9072, while the sum is 32.

The square root of 249371213 is about 15791.4917914680. The cubic root of 249371213 is about 629.4319335528.

The spelling of 249371213 in words is "two hundred forty-nine million, three hundred seventy-one thousand, two hundred thirteen".