239145645 has 8 divisors (see below), whose sum is σ = 382633056. Its totient is φ = 127544336.

The previous prime is 239145631. The next prime is 239145677. The reversal of 239145645 is 546541932.

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 239145645 - 2²⁴ = 222368429 is a prime.

It is a super-3 number, since 3×239145645³ (a number of 26 digits) contains 333 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 7971507 + ... + 7971536.

It is an arithmetic number, because the mean of its divisors is an integer number (47829132).

Almost surely, 2^239145645 is an apocalyptic number.

It is an amenable number.

239145645 is a deficient number, since it is larger than the sum of its proper divisors (143487411).

239145645 is a wasteful number, since it uses less digits than its factorization.

239145645 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15943051.

The product of its digits is 129600, while the sum is 39.

The square root of 239145645 is about 15464.3346122619. The cubic root of 239145645 is about 620.7082134335.

The spelling of 239145645 in words is "two hundred thirty-nine million, one hundred forty-five thousand, six hundred forty-five".