18142255 has 8 divisors (see below), whose sum is σ = 22521600. Its totient is φ = 14013216.

The previous prime is 18142253. The next prime is 18142273. The reversal of 18142255 is 55224181.

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 18142255 - 2¹ = 18142253 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (18142253) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 62415 + ... + 62704.

It is an arithmetic number, because the mean of its divisors is an integer number (2815200).

Almost surely, 2^18142255 is an apocalyptic number.

18142255 is a deficient number, since it is larger than the sum of its proper divisors (4379345).

18142255 is a wasteful number, since it uses less digits than its factorization.

18142255 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 125153.

The product of its digits is 3200, while the sum is 28.

The square root of 18142255 is about 4259.3726063823. The cubic root of 18142255 is about 262.7627241143.

It can be divided in two parts, 181 and 42255, that added together give a square (42436 = 206²).

The spelling of 18142255 in words is "eighteen million, one hundred forty-two thousand, two hundred fifty-five".