85149528 has 32 divisors (see below), whose sum is σ = 213817200. Its totient is φ = 28257408.

The previous prime is 85149527. The next prime is 85149541. The reversal of 85149528 is 82594158.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 85149528.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (85149521) 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, 2251 + ... + 13242.

Almost surely, 2^85149528 is an apocalyptic number.

It is an amenable number.

85149528 is an abundant number, since it is smaller than the sum of its proper divisors (128667672).

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

85149528 is a wasteful number, since it uses less digits than its factorization.

85149528 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15731 (or 15727 counting only the distinct ones).

The product of its digits is 115200, while the sum is 42.

The square root of 85149528 is about 9227.6501884283. The cubic root of 85149528 is about 439.9406393749.

The spelling of 85149528 in words is "eighty-five million, one hundred forty-nine thousand, five hundred twenty-eight".