85394153 has 8 divisors (see below), whose sum is σ = 92197896. Its totient is φ = 78624000.

The previous prime is 85394149. The next prime is 85394167. The reversal of 85394153 is 35149358.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 1982464 + 83411689 = 1408^2 + 9133^2 .

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

It is not a de Polignac number, because 85394153 - 2² = 85394149 is a prime.

It is a super-2 number, since 2×85394153² = 14584322733174818, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (85394143) 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, 2978 + ... + 13403.

It is an arithmetic number, because the mean of its divisors is an integer number (11524737).

Almost surely, 2^85394153 is an apocalyptic number.

It is an amenable number.

85394153 is a deficient number, since it is larger than the sum of its proper divisors (6803743).

85394153 is a wasteful number, since it uses less digits than its factorization.

85394153 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16795.

The product of its digits is 64800, while the sum is 38.

The square root of 85394153 is about 9240.8956816967. The cubic root of 85394153 is about 440.3615365312.

The spelling of 85394153 in words is "eighty-five million, three hundred ninety-four thousand, one hundred fifty-three".