85261313 has 4 divisors (see below), whose sum is σ = 86706480. Its totient is φ = 83816148.

The previous prime is 85261291. The next prime is 85261321. The reversal of 85261313 is 31316258.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 85261313 - 2⁶ = 85261249 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (85261343) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 722495 + ... + 722612.

It is an arithmetic number, because the mean of its divisors is an integer number (21676620).

Almost surely, 2^85261313 is an apocalyptic number.

It is an amenable number.

85261313 is a deficient number, since it is larger than the sum of its proper divisors (1445167).

85261313 is a wasteful number, since it uses less digits than its factorization.

85261313 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1445166.

The product of its digits is 4320, while the sum is 29.

The square root of 85261313 is about 9233.7052692838. The cubic root of 85261313 is about 440.1330744181.

The spelling of 85261313 in words is "eighty-five million, two hundred sixty-one thousand, three hundred thirteen".