239201945 has 4 divisors (see below), whose sum is σ = 287042340. Its totient is φ = 191361552.

The previous prime is 239201927. The next prime is 239201981. The reversal of 239201945 is 549102932.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 155351296 + 83850649 = 12464^2 + 9157^2 .

It is a cyclic number.

It is not a de Polignac number, because 239201945 - 2⁸ = 239201689 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 23920190 + ... + 23920199.

It is an arithmetic number, because the mean of its divisors is an integer number (71760585).

Almost surely, 2^239201945 is an apocalyptic number.

It is an amenable number.

239201945 is a deficient number, since it is larger than the sum of its proper divisors (47840395).

239201945 is an equidigital number, since it uses as much as digits as its factorization.

239201945 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 47840394.

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

The square root of 239201945 is about 15466.1548227088. The cubic root of 239201945 is about 620.7569189416.

The spelling of 239201945 in words is "two hundred thirty-nine million, two hundred one thousand, nine hundred forty-five".