249789229 has 2 divisors, whose sum is σ = 249789230. Its totient is φ = 249789228.

The previous prime is 249789167. The next prime is 249789233. The reversal of 249789229 is 922987942.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 233386729 + 16402500 = 15277^2 + 4050^2 .

It is a cyclic number.

It is not a de Polignac number, because 249789229 - 2²⁵ = 216234797 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (249789299) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 124894614 + 124894615.

It is an arithmetic number, because the mean of its divisors is an integer number (124894615).

Almost surely, 2^249789229 is an apocalyptic number.

It is an amenable number.

249789229 is a deficient number, since it is larger than the sum of its proper divisors (1).

249789229 is an equidigital number, since it uses as much as digits as its factorization.

249789229 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1306368, while the sum is 52.

The square root of 249789229 is about 15804.7217311789. The cubic root of 249789229 is about 629.7834386255.

The spelling of 249789229 in words is "two hundred forty-nine million, seven hundred eighty-nine thousand, two hundred twenty-nine".