249041 has 4 divisors (see below), whose sum is σ = 268212. Its totient is φ = 229872.

The previous prime is 249037. The next prime is 249059. The reversal of 249041 is 140942.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 19600 + 229441 = 140^2 + 479^2 .

It is a cyclic number.

It is not a de Polignac number, because 249041 - 2² = 249037 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (249341) 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, 9566 + ... + 9591.

It is an arithmetic number, because the mean of its divisors is an integer number (67053).

2²⁴⁹⁰⁴¹ is an apocalyptic number.

It is an amenable number.

249041 is a deficient number, since it is larger than the sum of its proper divisors (19171).

249041 is a wasteful number, since it uses less digits than its factorization.

249041 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19170.

The product of its (nonzero) digits is 288, while the sum is 20.

The square root of 249041 is about 499.0400785508. The cubic root of 249041 is about 62.9153983244.

Adding to 249041 its reverse (140942), we get a palindrome (389983).

The spelling of 249041 in words is "two hundred forty-nine thousand, forty-one".