85133910 has 32 divisors (see below), whose sum is σ = 206351712. Its totient is φ = 22476800.

The previous prime is 85133903. The next prime is 85133911. The reversal of 85133910 is 1933158.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (85133911) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 11019 + ... + 17078.

It is an arithmetic number, because the mean of its divisors is an integer number (6448491).

Almost surely, 2^85133910 is an apocalyptic number.

85133910 is an abundant number, since it is smaller than the sum of its proper divisors (121217802).

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

85133910 is a wasteful number, since it uses less digits than its factorization.

85133910 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28208.

The product of its (nonzero) digits is 3240, while the sum is 30.

The square root of 85133910 is about 9226.8038886713. The cubic root of 85133910 is about 439.9137399773.

The spelling of 85133910 in words is "eighty-five million, one hundred thirty-three thousand, nine hundred ten".