265434985 has 8 divisors (see below), whose sum is σ = 319018176. Its totient is φ = 212017200.

The previous prime is 265434931. The next prime is 265435031. The reversal of 265434985 is 589434562.

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

It is not a de Polignac number, because 265434985 - 2⁷ = 265434857 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 37791 + ... + 44260.

It is an arithmetic number, because the mean of its divisors is an integer number (39877272).

Almost surely, 2^265434985 is an apocalyptic number.

It is an amenable number.

265434985 is a deficient number, since it is larger than the sum of its proper divisors (53583191).

265434985 is an equidigital number, since it uses as much as digits as its factorization.

265434985 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 82703.

The product of its digits is 1036800, while the sum is 46.

The square root of 265434985 is about 16292.1755760242. The cubic root of 265434985 is about 642.6670804504.

The spelling of 265434985 in words is "two hundred sixty-five million, four hundred thirty-four thousand, nine hundred eighty-five".