249087 has 8 divisors (see below), whose sum is σ = 336640. Its totient is φ = 163800.

The previous prime is 249079. The next prime is 249089. The reversal of 249087 is 780942.

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

It is not a de Polignac number, because 249087 - 2³ = 249079 is a prime.

It is a Duffinian number.

It is a plaindrome in base 14 and base 16.

It is a zygodrome in base 2.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (249089) 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, 289 + ... + 762.

It is an arithmetic number, because the mean of its divisors is an integer number (42080).

2²⁴⁹⁰⁸⁷ is an apocalyptic number.

249087 is a deficient number, since it is larger than the sum of its proper divisors (87553).

249087 is a wasteful number, since it uses less digits than its factorization.

249087 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1133.

The product of its (nonzero) digits is 4032, while the sum is 30.

The square root of 249087 is about 499.0861649054. The cubic root of 249087 is about 62.9192717564.

The spelling of 249087 in words is "two hundred forty-nine thousand, eighty-seven".