249089 has 2 divisors, whose sum is σ = 249090. Its totient is φ = 249088.

The previous prime is 249079. The next prime is 249097. The reversal of 249089 is 980942.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 146689 + 102400 = 383^2 + 320^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-249089 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (249059) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 124544 + 124545.

It is an arithmetic number, because the mean of its divisors is an integer number (124545).

2²⁴⁹⁰⁸⁹ is an apocalyptic number.

It is an amenable number.

249089 is a deficient number, since it is larger than the sum of its proper divisors (1).

249089 is an equidigital number, since it uses as much as digits as its factorization.

249089 is an evil number, because the sum of its binary digits is even.

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

The square root of 249089 is about 499.0881685634. The cubic root of 249089 is about 62.9194401557.

The spelling of 249089 in words is "two hundred forty-nine thousand, eighty-nine".