239245091 has 2 divisors, whose sum is σ = 239245092. Its totient is φ = 239245090.

The previous prime is 239245067. The next prime is 239245121. The reversal of 239245091 is 190542932.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 239245091 - 2²² = 235050787 is a prime.

It is not a weakly prime, because it can be changed into another prime (239245031) 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, 119622545 + 119622546.

It is an arithmetic number, because the mean of its divisors is an integer number (119622546).

Almost surely, 2^239245091 is an apocalyptic number.

239245091 is a deficient number, since it is larger than the sum of its proper divisors (1).

239245091 is an equidigital number, since it uses as much as digits as its factorization.

239245091 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 19440, while the sum is 35.

The square root of 239245091 is about 15467.5496120103. The cubic root of 239245091 is about 620.7942396636.

The spelling of 239245091 in words is "two hundred thirty-nine million, two hundred forty-five thousand, ninety-one".