249078223 has 2 divisors, whose sum is σ = 249078224. Its totient is φ = 249078222.

The previous prime is 249078199. The next prime is 249078229. The reversal of 249078223 is 322870942.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 249078223 - 2²¹ = 246981071 is a prime.

It is a super-2 number, since 2×249078223² = 124079922345675458, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (249078229) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 124539111 + 124539112.

It is an arithmetic number, because the mean of its divisors is an integer number (124539112).

Almost surely, 2^249078223 is an apocalyptic number.

249078223 is a deficient number, since it is larger than the sum of its proper divisors (1).

249078223 is an equidigital number, since it uses as much as digits as its factorization.

249078223 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 48384, while the sum is 37.

The square root of 249078223 is about 15782.2122340311. The cubic root of 249078223 is about 629.1853272557.

The spelling of 249078223 in words is "two hundred forty-nine million, seventy-eight thousand, two hundred twenty-three".