249091241 has 4 divisors (see below), whose sum is σ = 284675712. Its totient is φ = 213506772.

The previous prime is 249091229. The next prime is 249091253. The reversal of 249091241 is 142190942.

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 an interprime number because it is at equal distance from previous prime (249091229) and next prime (249091253).

It is a cyclic number.

It is not a de Polignac number, because 249091241 - 2⁶ = 249091177 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 249091198 and 249091207.

It is not an unprimeable number, because it can be changed into a prime (249091201) 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, 17792225 + ... + 17792238.

It is an arithmetic number, because the mean of its divisors is an integer number (71168928).

Almost surely, 2^249091241 is an apocalyptic number.

It is an amenable number.

249091241 is a deficient number, since it is larger than the sum of its proper divisors (35584471).

249091241 is an equidigital number, since it uses as much as digits as its factorization.

249091241 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 35584470.

The product of its (nonzero) digits is 5184, while the sum is 32.

The square root of 249091241 is about 15782.6246549806. The cubic root of 249091241 is about 629.1962884601.

The spelling of 249091241 in words is "two hundred forty-nine million, ninety-one thousand, two hundred forty-one".