142216855 has 16 divisors (see below), whose sum is σ = 186480000. Its totient is φ = 103260960.

The previous prime is 142216847. The next prime is 142216859. The reversal of 142216855 is 558612241.

It is a happy number.

142216855 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 142216855 - 2³ = 142216847 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 142216855.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (142216859) 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, 38896 + ... + 42394.

It is an arithmetic number, because the mean of its divisors is an integer number (11655000).

Almost surely, 2^142216855 is an apocalyptic number.

142216855 is a deficient number, since it is larger than the sum of its proper divisors (44263145).

142216855 is a wasteful number, since it uses less digits than its factorization.

142216855 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4254.

The product of its digits is 19200, while the sum is 34.

The square root of 142216855 is about 11925.4708502432. The cubic root of 142216855 is about 521.9757858343.

The spelling of 142216855 in words is "one hundred forty-two million, two hundred sixteen thousand, eight hundred fifty-five".