142244170 has 32 divisors (see below), whose sum is σ = 263586960. Its totient is φ = 55234560.

The previous prime is 142244143. The next prime is 142244171. The reversal of 142244170 is 71442241.

142244170 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 8 ways, for example, as 2082249 + 140161921 = 1443^2 + 11839^2 .

It is not an unprimeable number, because it can be changed into a prime (142244171) 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, 94786 + ... + 96274.

Almost surely, 2^142244170 is an apocalyptic number.

142244170 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

142244170 is a deficient number, since it is larger than the sum of its proper divisors (121342790).

142244170 is a wasteful number, since it uses less digits than its factorization.

142244170 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1770.

The product of its (nonzero) digits is 1792, while the sum is 25.

The square root of 142244170 is about 11926.6160330582. The cubic root of 142244170 is about 522.0092016013.

The spelling of 142244170 in words is "one hundred forty-two million, two hundred forty-four thousand, one hundred seventy".