265140213223 has 4 divisors (see below), whose sum is σ = 265141868680. Its totient is φ = 265138557768.

The previous prime is 265140213137. The next prime is 265140213241. The reversal of 265140213223 is 322312041562.

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

It is a cyclic number.

It is not a de Polignac number, because 265140213223 - 2³³ = 256550278631 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (265140213263) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 558240 + ... + 917557.

It is an arithmetic number, because the mean of its divisors is an integer number (66285467170).

Almost surely, 2^265140213223 is an apocalyptic number.

265140213223 is a deficient number, since it is larger than the sum of its proper divisors (1655457).

265140213223 is a wasteful number, since it uses less digits than its factorization.

265140213223 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1655456.

The product of its (nonzero) digits is 17280, while the sum is 31.

Adding to 265140213223 its reverse (322312041562), we get a palindrome (587452254785).

The spelling of 265140213223 in words is "two hundred sixty-five billion, one hundred forty million, two hundred thirteen thousand, two hundred twenty-three".