8555142 has 32 divisors (see below), whose sum is σ = 17781120. Its totient is φ = 2742080.

The previous prime is 8555123. The next prime is 8555143. The reversal of 8555142 is 2415558.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8555143) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 20209 + ... + 20627.

It is an arithmetic number, because the mean of its divisors is an integer number (555660).

Almost surely, 2^8555142 is an apocalyptic number.

8555142 is a gapful number since it is divisible by the number (82) formed by its first and last digit.

8555142 is an abundant number, since it is smaller than the sum of its proper divisors (9225978).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

8555142 is a wasteful number, since it uses less digits than its factorization.

8555142 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 548.

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

The square root of 8555142 is about 2924.9174347321. The cubic root of 8555142 is about 204.5231191594.

The spelling of 8555142 in words is "eight million, five hundred fifty-five thousand, one hundred forty-two".