142320252 has 12 divisors (see below), whose sum is σ = 332080616. Its totient is φ = 47440080.

The previous prime is 142320247. The next prime is 142320301. The reversal of 142320252 is 252023241.

It is a tau number, because it is divible by the number of its divisors (12).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5929999 + ... + 5930022.

Almost surely, 2^142320252 is an apocalyptic number.

142320252 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

142320252 is an abundant number, since it is smaller than the sum of its proper divisors (189760364).

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

142320252 is a wasteful number, since it uses less digits than its factorization.

142320252 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11860028 (or 11860026 counting only the distinct ones).

The product of its (nonzero) digits is 960, while the sum is 21.

The square root of 142320252 is about 11929.8051953919. The cubic root of 142320252 is about 522.1022538633.

Adding to 142320252 its reverse (252023241), we get a palindrome (394343493).

The spelling of 142320252 in words is "one hundred forty-two million, three hundred twenty thousand, two hundred fifty-two".