249297 has 8 divisors (see below), whose sum is σ = 346944. Its totient is φ = 158928.

The previous prime is 249287. The next prime is 249311. The reversal of 249297 is 792942.

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

It is not a de Polignac number, because 249297 - 2⁶ = 249233 is a prime.

249297 is a lucky number.

It is a plaindrome in base 14.

It is not an unprimeable number, because it can be changed into a prime (249217) 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 7 ways as a sum of consecutive naturals, for example, 1738 + ... + 1875.

It is an arithmetic number, because the mean of its divisors is an integer number (43368).

2²⁴⁹²⁹⁷ is an apocalyptic number.

It is an amenable number.

249297 is a deficient number, since it is larger than the sum of its proper divisors (97647).

249297 is a wasteful number, since it uses less digits than its factorization.

249297 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3639.

The product of its digits is 9072, while the sum is 33.

The square root of 249297 is about 499.2965050949. The cubic root of 249297 is about 62.9369487603.

The spelling of 249297 in words is "two hundred forty-nine thousand, two hundred ninety-seven".