85515345 has 56 divisors (see below), whose sum is σ = 159359400. Its totient is φ = 43981056.

The previous prime is 85515343. The next prime is 85515361. The reversal of 85515345 is 54351558.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 23357889 + 62157456 = 4833^2 + 7884^2 .

It is not a de Polignac number, because 85515345 - 2¹ = 85515343 is a prime.

It is a hoax number, since the sum of its digits (36) coincides with the sum of the digits of its distinct prime factors.

It is not an unprimeable number, because it can be changed into a prime (85515343) by changing a digit.

It is a polite number, since it can be written in 55 ways as a sum of consecutive naturals, for example, 105301 + ... + 106109.

Almost surely, 2^85515345 is an apocalyptic number.

It is an amenable number.

85515345 is a deficient number, since it is larger than the sum of its proper divisors (73844055).

85515345 is an equidigital number, since it uses as much as digits as its factorization.

85515345 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 861 (or 846 counting only the distinct ones).

The product of its digits is 60000, while the sum is 36.

The square root of 85515345 is about 9247.4507297958. The cubic root of 85515345 is about 440.5697594850.

The spelling of 85515345 in words is "eighty-five million, five hundred fifteen thousand, three hundred forty-five".