142168756 has 12 divisors (see below), whose sum is σ = 263430468. Its totient is φ = 66902912.

The previous prime is 142168751. The next prime is 142168787. The reversal of 142168756 is 657861241.

It can be written as a sum of positive squares in 2 ways, for example, as 80389156 + 61779600 = 8966^2 + 7860^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (142168751) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1045291 + ... + 1045426.

It is an arithmetic number, because the mean of its divisors is an integer number (21952539).

Almost surely, 2^142168756 is an apocalyptic number.

It is an amenable number.

142168756 is a deficient number, since it is larger than the sum of its proper divisors (121261712).

142168756 is a wasteful number, since it uses less digits than its factorization.

142168756 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2090738 (or 2090736 counting only the distinct ones).

The product of its digits is 80640, while the sum is 40.

The square root of 142168756 is about 11923.4540297684. The cubic root of 142168756 is about 521.9169335877.

The spelling of 142168756 in words is "one hundred forty-two million, one hundred sixty-eight thousand, seven hundred fifty-six".