142747243 has 4 divisors (see below), whose sum is σ = 142804888. Its totient is φ = 142689600.

The previous prime is 142747211. The next prime is 142747289. The reversal of 142747243 is 342747241.

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

It is a cyclic number.

It is not a de Polignac number, because 142747243 - 2⁵ = 142747211 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 142747199 and 142747208.

It is not an unprimeable number, because it can be changed into a prime (142717243) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 24933 + ... + 30118.

It is an arithmetic number, because the mean of its divisors is an integer number (35701222).

Almost surely, 2^142747243 is an apocalyptic number.

142747243 is a deficient number, since it is larger than the sum of its proper divisors (57645).

142747243 is an equidigital number, since it uses as much as digits as its factorization.

142747243 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 57644.

The product of its digits is 37632, while the sum is 34.

The square root of 142747243 is about 11947.6877679323. The cubic root of 142747243 is about 522.6238717930.

The spelling of 142747243 in words is "one hundred forty-two million, seven hundred forty-seven thousand, two hundred forty-three".