249485 has 8 divisors (see below), whose sum is σ = 306936. Its totient is φ = 194560.

The previous prime is 249463. The next prime is 249497. The reversal of 249485 is 584942.

It can be written as a sum of positive squares in 4 ways, for example, as 484 + 249001 = 22^2 + 499^2 .

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

It is not a de Polignac number, because 249485 - 2⁶ = 249421 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 404 + ... + 813.

It is an arithmetic number, because the mean of its divisors is an integer number (38367).

2²⁴⁹⁴⁸⁵ is an apocalyptic number.

It is an amenable number.

249485 is a deficient number, since it is larger than the sum of its proper divisors (57451).

249485 is a wasteful number, since it uses less digits than its factorization.

249485 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1263.

The product of its digits is 11520, while the sum is 32.

The square root of 249485 is about 499.4847345015. The cubic root of 249485 is about 62.9527654680.

The spelling of 249485 in words is "two hundred forty-nine thousand, four hundred eighty-five".