249601 has 4 divisors (see below), whose sum is σ = 272304. Its totient is φ = 226900.

The previous prime is 249593. The next prime is 249607. The reversal of 249601 is 106942.

249601 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 249601 - 2³ = 249593 is a prime.

It is a Smith number, since the sum of its digits (22) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is an Ulam number.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (249607) 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, 11335 + ... + 11356.

It is an arithmetic number, because the mean of its divisors is an integer number (68076).

2²⁴⁹⁶⁰¹ is an apocalyptic number.

It is an amenable number.

249601 is a deficient number, since it is larger than the sum of its proper divisors (22703).

249601 is a wasteful number, since it uses less digits than its factorization.

249601 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22702.

The product of its (nonzero) digits is 432, while the sum is 22.

The square root of 249601 is about 499.6008406718. The cubic root of 249601 is about 62.9625207496.

The spelling of 249601 in words is "two hundred forty-nine thousand, six hundred one".