265940313 has 8 divisors (see below), whose sum is σ = 354772128. Its totient is φ = 177201024.

The previous prime is 265940303. The next prime is 265940327. The reversal of 265940313 is 313049562.

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

It is not a de Polignac number, because 265940313 - 2⁶ = 265940249 is a prime.

It is not an unprimeable number, because it can be changed into a prime (265940303) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 16120 + ... + 28137.

It is an arithmetic number, because the mean of its divisors is an integer number (44346516).

Almost surely, 2^265940313 is an apocalyptic number.

It is an amenable number.

265940313 is a deficient number, since it is larger than the sum of its proper divisors (88831815).

265940313 is a wasteful number, since it uses less digits than its factorization.

265940313 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 46263.

The product of its (nonzero) digits is 19440, while the sum is 33.

The square root of 265940313 is about 16307.6765052536. The cubic root of 265940313 is about 643.0746526974.

Adding to 265940313 its reverse (313049562), we get a palindrome (578989875).

The spelling of 265940313 in words is "two hundred sixty-five million, nine hundred forty thousand, three hundred thirteen".