85451613 has 8 divisors (see below), whose sum is σ = 122699808. Its totient is φ = 52585584.

The previous prime is 85451573. The next prime is 85451627. The reversal of 85451613 is 31615458.

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

It is not a de Polignac number, because 85451613 - 2⁸ = 85451357 is a prime.

It is a Smith number, since the sum of its digits (33) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (85451713) 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, 1095495 + ... + 1095572.

It is an arithmetic number, because the mean of its divisors is an integer number (15337476).

Almost surely, 2^85451613 is an apocalyptic number.

It is an amenable number.

85451613 is a deficient number, since it is larger than the sum of its proper divisors (37248195).

85451613 is a wasteful number, since it uses less digits than its factorization.

85451613 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2191083.

The product of its digits is 14400, while the sum is 33.

The square root of 85451613 is about 9244.0041648628. The cubic root of 85451613 is about 440.4602845125.

The spelling of 85451613 in words is "eighty-five million, four hundred fifty-one thousand, six hundred thirteen".