265139013 has 8 divisors (see below), whose sum is σ = 355194976. Its totient is φ = 175921200.

The previous prime is 265139011. The next prime is 265139029. The reversal of 265139013 is 310931562.

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

It is not a de Polignac number, because 265139013 - 2¹ = 265139011 is a prime.

It is a super-2 number, since 2×265139013² = 140597392429228338, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (265139011) by changing a digit.

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, 208798 + ... + 210063.

It is an arithmetic number, because the mean of its divisors is an integer number (44399372).

Almost surely, 2^265139013 is an apocalyptic number.

It is an amenable number.

265139013 is a deficient number, since it is larger than the sum of its proper divisors (90055963).

265139013 is a wasteful number, since it uses less digits than its factorization.

265139013 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 419075.

The product of its (nonzero) digits is 4860, while the sum is 30.

The square root of 265139013 is about 16283.0897866468. The cubic root of 265139013 is about 642.4281240030.

The spelling of 265139013 in words is "two hundred sixty-five million, one hundred thirty-nine thousand, thirteen".