239575949 has 2 divisors, whose sum is σ = 239575950. Its totient is φ = 239575948.

The previous prime is 239575891. The next prime is 239575957. The reversal of 239575949 is 949575932.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 220374025 + 19201924 = 14845^2 + 4382^2 .

It is a cyclic number.

It is not a de Polignac number, because 239575949 - 2¹² = 239571853 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 239575949.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (239575549) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 119787974 + 119787975.

It is an arithmetic number, because the mean of its divisors is an integer number (119787975).

Almost surely, 2^239575949 is an apocalyptic number.

It is an amenable number.

239575949 is a deficient number, since it is larger than the sum of its proper divisors (1).

239575949 is an equidigital number, since it uses as much as digits as its factorization.

239575949 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 3061800, while the sum is 53.

The square root of 239575949 is about 15478.2411468487. The cubic root of 239575949 is about 621.0802784569.

The spelling of 239575949 in words is "two hundred thirty-nine million, five hundred seventy-five thousand, nine hundred forty-nine".