85149320 has 16 divisors (see below), whose sum is σ = 191586060. Its totient is φ = 34059712.

The previous prime is 85149319. The next prime is 85149371. The reversal of 85149320 is 2394158.

It can be written as a sum of positive squares in 2 ways, for example, as 78605956 + 6543364 = 8866^2 + 2558^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1064327 + ... + 1064406.

Almost surely, 2^85149320 is an apocalyptic number.

It is an amenable number.

85149320 is an abundant number, since it is smaller than the sum of its proper divisors (106436740).

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

85149320 is a wasteful number, since it uses less digits than its factorization.

85149320 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2128744 (or 2128740 counting only the distinct ones).

The product of its (nonzero) digits is 8640, while the sum is 32.

The square root of 85149320 is about 9227.6389179465. The cubic root of 85149320 is about 439.9402811512.

The spelling of 85149320 in words is "eighty-five million, one hundred forty-nine thousand, three hundred twenty".