142168552 has 32 divisors (see below), whose sum is σ = 286890120. Its totient is φ = 65802240.

The previous prime is 142168549. The next prime is 142168553. The reversal of 142168552 is 255861241.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 54671236 + 87497316 = 7394^2 + 9354^2 .

It is a Harshad number since it is a multiple of its sum of digits (34).

It is not an unprimeable number, because it can be changed into a prime (142168553) 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 7 ways as a sum of consecutive naturals, for example, 273 + ... + 16864.

Almost surely, 2^142168552 is an apocalyptic number.

It is an amenable number.

142168552 is an abundant number, since it is smaller than the sum of its proper divisors (144721568).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

142168552 is a wasteful number, since it uses less digits than its factorization.

142168552 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17221 (or 17217 counting only the distinct ones).

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

The square root of 142168552 is about 11923.4454751972. The cubic root of 142168552 is about 521.9166839522.

The spelling of 142168552 in words is "one hundred forty-two million, one hundred sixty-eight thousand, five hundred fifty-two".