85452156 has 36 divisors (see below), whose sum is σ = 216386352. Its totient is φ = 28433664.

The previous prime is 85452113. The next prime is 85452173. The reversal of 85452156 is 65125458.

85452156 is a `hidden beast` number, since 85 + 4 + 521 + 56 = 666.

It is a tau number, because it is divible by the number of its divisors (36).

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a self number, because there is not a number n which added to its sum of digits gives 85452156.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 22465 + ... + 25991.

It is an arithmetic number, because the mean of its divisors is an integer number (6010732).

Almost surely, 2^85452156 is an apocalyptic number.

It is an amenable number.

85452156 is an abundant number, since it is smaller than the sum of its proper divisors (130934196).

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

85452156 is a wasteful number, since it uses less digits than its factorization.

85452156 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4210 (or 4205 counting only the distinct ones).

The product of its digits is 48000, while the sum is 36.

The square root of 85452156 is about 9244.0335352053. The cubic root of 85452156 is about 440.4612174749.

It can be divided in two parts, 8545 and 2156, that added together give a palindrome (10701).

The spelling of 85452156 in words is "eighty-five million, four hundred fifty-two thousand, one hundred fifty-six".