865192013 has 8 divisors (see below), whose sum is σ = 1002718080. Its totient is φ = 731147760.

The previous prime is 865192001. The next prime is 865192073. The reversal of 865192013 is 310291568.

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

It is not a de Polignac number, because 865192013 - 2¹⁶ = 865126477 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (865192073) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 869918 + ... + 870911.

It is an arithmetic number, because the mean of its divisors is an integer number (125339760).

Almost surely, 2^865192013 is an apocalyptic number.

It is an amenable number.

865192013 is a deficient number, since it is larger than the sum of its proper divisors (137526067).

865192013 is a wasteful number, since it uses less digits than its factorization.

865192013 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1740907.

The product of its (nonzero) digits is 12960, while the sum is 35.

The square root of 865192013 is about 29414.1464775030. The cubic root of 865192013 is about 952.8784397845.

The spelling of 865192013 in words is "eight hundred sixty-five million, one hundred ninety-two thousand, thirteen".