85127155 has 4 divisors (see below), whose sum is σ = 102152592. Its totient is φ = 68101720.

The previous prime is 85127153. The next prime is 85127173. The reversal of 85127155 is 55172158.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 85127155 - 2¹ = 85127153 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 85127155.

It is not an unprimeable number, because it can be changed into a prime (85127153) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 8512711 + ... + 8512720.

It is an arithmetic number, because the mean of its divisors is an integer number (25538148).

Almost surely, 2^85127155 is an apocalyptic number.

85127155 is a deficient number, since it is larger than the sum of its proper divisors (17025437).

85127155 is a wasteful number, since it uses less digits than its factorization.

85127155 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17025436.

The product of its digits is 14000, while the sum is 34.

The square root of 85127155 is about 9226.4378283279. The cubic root of 85127155 is about 439.9021045983.

The spelling of 85127155 in words is "eighty-five million, one hundred twenty-seven thousand, one hundred fifty-five".