142253339 has 4 divisors (see below), whose sum is σ = 142305024. Its totient is φ = 142201656.

The previous prime is 142253333. The next prime is 142253341. The reversal of 142253339 is 933352241.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-142253339 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (142253333) 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, 21467 + ... + 27300.

It is an arithmetic number, because the mean of its divisors is an integer number (35576256).

Almost surely, 2^142253339 is an apocalyptic number.

142253339 is a deficient number, since it is larger than the sum of its proper divisors (51685).

142253339 is an equidigital number, since it uses as much as digits as its factorization.

142253339 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 51684.

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

The square root of 142253339 is about 11927.0004192169. Note that the first 3 decimals coincide. The cubic root of 142253339 is about 522.0204175256.

The spelling of 142253339 in words is "one hundred forty-two million, two hundred fifty-three thousand, three hundred thirty-nine".