142222870 has 16 divisors (see below), whose sum is σ = 256138848. Its totient is φ = 56858560.

The previous prime is 142222859. The next prime is 142222877. The reversal of 142222870 is 78222241.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (142222877) 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, 29682 + ... + 34138.

It is an arithmetic number, because the mean of its divisors is an integer number (16008678).

Almost surely, 2^142222870 is an apocalyptic number.

142222870 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

142222870 is a deficient number, since it is larger than the sum of its proper divisors (113915978).

142222870 is a wasteful number, since it uses less digits than its factorization.

142222870 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7655.

The product of its (nonzero) digits is 3584, while the sum is 28.

The square root of 142222870 is about 11925.7230388769. The cubic root of 142222870 is about 521.9831446435.

The spelling of 142222870 in words is "one hundred forty-two million, two hundred twenty-two thousand, eight hundred seventy".