249371 has 4 divisors (see below), whose sum is σ = 258000. Its totient is φ = 240744.

The previous prime is 249367. The next prime is 249377. The reversal of 249371 is 173942.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 249371 - 2² = 249367 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 249371.

It is not an unprimeable number, because it can be changed into a prime (249377) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4271 + ... + 4328.

It is an arithmetic number, because the mean of its divisors is an integer number (64500).

2²⁴⁹³⁷¹ is an apocalyptic number.

249371 is a deficient number, since it is larger than the sum of its proper divisors (8629).

249371 is an equidigital number, since it uses as much as digits as its factorization.

249371 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8628.

The product of its digits is 1512, while the sum is 26.

The square root of 249371 is about 499.3706038605. The cubic root of 249371 is about 62.9431754343.

The spelling of 249371 in words is "two hundred forty-nine thousand, three hundred seventy-one".