142006144 has 32 divisors (see below), whose sum is σ = 323319600. Its totient is φ = 60859392.

The previous prime is 142006141. The next prime is 142006147. The reversal of 142006144 is 441600241.

It is an interprime number because it is at equal distance from previous prime (142006141) and next prime (142006147).

It is a tau number, because it is divible by the number of its divisors (32).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (142006141) 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, 78349 + ... + 80140.

Almost surely, 2^142006144 is an apocalyptic number.

142006144 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

It is an amenable number.

142006144 is an abundant number, since it is smaller than the sum of its proper divisors (181313456).

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

142006144 is an equidigital number, since it uses as much as digits as its factorization.

142006144 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 158510 (or 158498 counting only the distinct ones).

The product of its (nonzero) digits is 768, while the sum is 22.

The square root of 142006144 is about 11916.6330815378. The cubic root of 142006144 is about 521.7178689049.

Adding to 142006144 its reverse (441600241), we get a palindrome (583606385).

The spelling of 142006144 in words is "one hundred forty-two million, six thousand, one hundred forty-four".