85136554 has 8 divisors (see below), whose sum is σ = 127747620. Its totient is φ = 42554016.

The previous prime is 85136543. The next prime is 85136567. The reversal of 85136554 is 45563158.

It can be written as a sum of positive squares in 2 ways, for example, as 83631025 + 1505529 = 9145^2 + 1227^2 .

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

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 3502 + ... + 13510.

Almost surely, 2^85136554 is an apocalyptic number.

85136554 is a deficient number, since it is larger than the sum of its proper divisors (42611066).

85136554 is a wasteful number, since it uses less digits than its factorization.

85136554 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14264.

The product of its digits is 72000, while the sum is 37.

The square root of 85136554 is about 9226.9471657748. The cubic root of 85136554 is about 439.9182940572.

The spelling of 85136554 in words is "eighty-five million, one hundred thirty-six thousand, five hundred fifty-four".