249413 has 4 divisors (see below), whose sum is σ = 262560. Its totient is φ = 236268.

The previous prime is 249397. The next prime is 249419. The reversal of 249413 is 314942.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 249413 - 2⁴ = 249397 is a prime.

It is an Ulam number.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (249419) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6545 + ... + 6582.

It is an arithmetic number, because the mean of its divisors is an integer number (65640).

2²⁴⁹⁴¹³ is an apocalyptic number.

It is an amenable number.

249413 is a deficient number, since it is larger than the sum of its proper divisors (13147).

249413 is a wasteful number, since it uses less digits than its factorization.

249413 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13146.

The product of its digits is 864, while the sum is 23.

The square root of 249413 is about 499.4126550259. The cubic root of 249413 is about 62.9467089446.

The spelling of 249413 in words is "two hundred forty-nine thousand, four hundred thirteen".