249465 has 8 divisors (see below), whose sum is σ = 399168. Its totient is φ = 133040.

The previous prime is 249463. The next prime is 249497. The reversal of 249465 is 564942.

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

It is not a de Polignac number, because 249465 - 2¹ = 249463 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (249463) 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, 8301 + ... + 8330.

It is an arithmetic number, because the mean of its divisors is an integer number (49896).

2²⁴⁹⁴⁶⁵ is an apocalyptic number.

It is an amenable number.

249465 is a deficient number, since it is larger than the sum of its proper divisors (149703).

249465 is a wasteful number, since it uses less digits than its factorization.

249465 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16639.

The product of its digits is 8640, while the sum is 30.

The square root of 249465 is about 499.4647134683. The cubic root of 249465 is about 62.9510832173.

The spelling of 249465 in words is "two hundred forty-nine thousand, four hundred sixty-five".