142256164 has 12 divisors (see below), whose sum is σ = 249083100. Its totient is φ = 71089568.

The previous prime is 142256161. The next prime is 142256171. The reversal of 142256164 is 461652241.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 81540900 + 60715264 = 9030^2 + 7792^2 .

It is not an unprimeable number, because it can be changed into a prime (142256161) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 319 + ... + 16870.

It is an arithmetic number, because the mean of its divisors is an integer number (20756925).

Almost surely, 2^142256164 is an apocalyptic number.

It is an amenable number.

142256164 is a deficient number, since it is larger than the sum of its proper divisors (106826936).

142256164 is a wasteful number, since it uses less digits than its factorization.

142256164 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19262 (or 19260 counting only the distinct ones).

The product of its digits is 11520, while the sum is 31.

The square root of 142256164 is about 11927.1188473998. The cubic root of 142256164 is about 522.0238730928.

The spelling of 142256164 in words is "one hundred forty-two million, two hundred fifty-six thousand, one hundred sixty-four".