239454913 has 2 divisors, whose sum is σ = 239454914. Its totient is φ = 239454912.

The previous prime is 239454893. The next prime is 239454937. The reversal of 239454913 is 319454932.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 198584464 + 40870449 = 14092^2 + 6393^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-239454913 is a prime.

It is not a weakly prime, because it can be changed into another prime (239454953) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 119727456 + 119727457.

It is an arithmetic number, because the mean of its divisors is an integer number (119727457).

Almost surely, 2^239454913 is an apocalyptic number.

It is an amenable number.

239454913 is a deficient number, since it is larger than the sum of its proper divisors (1).

239454913 is an equidigital number, since it uses as much as digits as its factorization.

239454913 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 116640, while the sum is 40.

The square root of 239454913 is about 15474.3307771289. The cubic root of 239454913 is about 620.9756689919.

The spelling of 239454913 in words is "two hundred thirty-nine million, four hundred fifty-four thousand, nine hundred thirteen".