142392533 has 4 divisors (see below), whose sum is σ = 142417548. Its totient is φ = 142367520.

The previous prime is 142392521. The next prime is 142392553. The reversal of 142392533 is 335293241.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 50098084 + 92294449 = 7078^2 + 9607^2 .

It is a cyclic number.

It is not a de Polignac number, because 142392533 - 2⁸ = 142392277 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 142392533.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (142392553) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 635 + ... + 16887.

It is an arithmetic number, because the mean of its divisors is an integer number (35604387).

Almost surely, 2^142392533 is an apocalyptic number.

It is an amenable number.

142392533 is a deficient number, since it is larger than the sum of its proper divisors (25015).

142392533 is an equidigital number, since it uses as much as digits as its factorization.

142392533 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25014.

The product of its digits is 19440, while the sum is 32.

The square root of 142392533 is about 11932.8342400286. The cubic root of 142392533 is about 522.1906265897.

The spelling of 142392533 in words is "one hundred forty-two million, three hundred ninety-two thousand, five hundred thirty-three".