8140255 has 4 divisors (see below), whose sum is σ = 9768312. Its totient is φ = 6512200.

The previous prime is 8140247. The next prime is 8140261. The reversal of 8140255 is 5520418.

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

It is not a de Polignac number, because 8140255 - 2³ = 8140247 is a prime.

It is a Duffinian number.

8140255 is a lucky number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 814021 + ... + 814030.

It is an arithmetic number, because the mean of its divisors is an integer number (2442078).

Almost surely, 2^8140255 is an apocalyptic number.

8140255 is a deficient number, since it is larger than the sum of its proper divisors (1628057).

8140255 is a wasteful number, since it uses less digits than its factorization.

8140255 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1628056.

The product of its (nonzero) digits is 1600, while the sum is 25.

The square root of 8140255 is about 2853.1132119143. The cubic root of 8140255 is about 201.1620270565.

The spelling of 8140255 in words is "eight million, one hundred forty thousand, two hundred fifty-five".