85801149 has 24 divisors (see below), whose sum is σ = 146212352. Its totient is φ = 47446560.

The previous prime is 85801139. The next prime is 85801153. The reversal of 85801149 is 94110858.

It is not a de Polignac number, because 85801149 - 2⁸ = 85800893 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 a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (85801129) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 20014 + ... + 23919.

Almost surely, 2^85801149 is an apocalyptic number.

It is an amenable number.

85801149 is a deficient number, since it is larger than the sum of its proper divisors (60411203).

85801149 is a wasteful number, since it uses less digits than its factorization.

85801149 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 43977 (or 43974 counting only the distinct ones).

The product of its (nonzero) digits is 11520, while the sum is 36.

The square root of 85801149 is about 9262.8909634088. The cubic root of 85801149 is about 441.0600285417.

The spelling of 85801149 in words is "eighty-five million, eight hundred one thousand, one hundred forty-nine".