85133918 has 8 divisors (see below), whose sum is σ = 129794520. Its totient is φ = 41869080.

The previous prime is 85133911. The next prime is 85133921. The reversal of 85133918 is 81933158.

It is a sphenic number, since it is the product of 3 distinct primes.

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 polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 348788 + ... + 349031.

It is an arithmetic number, because the mean of its divisors is an integer number (16224315).

Almost surely, 2^85133918 is an apocalyptic number.

85133918 is a deficient number, since it is larger than the sum of its proper divisors (44660602).

85133918 is a wasteful number, since it uses less digits than its factorization.

85133918 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 697882.

The product of its digits is 25920, while the sum is 38.

The square root of 85133918 is about 9226.8043221909. The cubic root of 85133918 is about 439.9137537568.

The spelling of 85133918 in words is "eighty-five million, one hundred thirty-three thousand, nine hundred eighteen".