239145593 has 8 divisors (see below), whose sum is σ = 244331208. Its totient is φ = 233985024.

The previous prime is 239145587. The next prime is 239145601. The reversal of 239145593 is 395541932.

It can be written as a sum of positive squares in 4 ways, for example, as 11377129 + 227768464 = 3373^2 + 15092^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 239145593 - 2¹⁶ = 239080057 is a prime.

It is a super-2 number, since 2×239145593² = 114381229302643298, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 239145593.

It is not an unprimeable number, because it can be changed into a prime (239145293) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 13721 + ... + 25817.

It is an arithmetic number, because the mean of its divisors is an integer number (30541401).

Almost surely, 2^239145593 is an apocalyptic number.

It is an amenable number.

239145593 is a deficient number, since it is larger than the sum of its proper divisors (5185615).

239145593 is a wasteful number, since it uses less digits than its factorization.

239145593 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12523.

The product of its digits is 145800, while the sum is 41.

The square root of 239145593 is about 15464.3329309738. The cubic root of 239145593 is about 620.7081684444.

The spelling of 239145593 in words is "two hundred thirty-nine million, one hundred forty-five thousand, five hundred ninety-three".