85140255 has 8 divisors (see below), whose sum is σ = 136224432. Its totient is φ = 45408128.

The previous prime is 85140247. The next prime is 85140271. The reversal of 85140255 is 55204158.

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

It is a cyclic number.

It is not a de Polignac number, because 85140255 - 2³ = 85140247 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2837994 + ... + 2838023.

It is an arithmetic number, because the mean of its divisors is an integer number (17028054).

Almost surely, 2^85140255 is an apocalyptic number.

85140255 is a deficient number, since it is larger than the sum of its proper divisors (51084177).

85140255 is a wasteful number, since it uses less digits than its factorization.

85140255 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5676025.

The product of its (nonzero) digits is 8000, while the sum is 30.

The square root of 85140255 is about 9227.1477174694. The cubic root of 85140255 is about 439.9246685772.

The spelling of 85140255 in words is "eighty-five million, one hundred forty thousand, two hundred fifty-five".