85152690 has 72 divisors (see below), whose sum is σ = 257556780. Its totient is φ = 19462464.

The previous prime is 85152631. The next prime is 85152701. The reversal of 85152690 is 9625158.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 78907689 + 6245001 = 8883^2 + 2499^2 .

It is a super-2 number, since 2×85152690² = 14501961228472200, which contains 22 as substring.

It is a Curzon number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 5245 + ... + 14064.

Almost surely, 2^85152690 is an apocalyptic number.

85152690 is an abundant number, since it is smaller than the sum of its proper divisors (172404090).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

85152690 is a wasteful number, since it uses less digits than its factorization.

85152690 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19336 (or 19326 counting only the distinct ones).

The product of its (nonzero) digits is 21600, while the sum is 36.

The square root of 85152690 is about 9227.8215197304. The cubic root of 85152690 is about 439.9460849916.

The spelling of 85152690 in words is "eighty-five million, one hundred fifty-two thousand, six hundred ninety".