142773242 has 8 divisors (see below), whose sum is σ = 226757556. Its totient is φ = 67187392.

The previous prime is 142773229. The next prime is 142773251. The reversal of 142773242 is 242377241.

It can be written as a sum of positive squares in 2 ways, for example, as 142587481 + 185761 = 11941^2 + 431^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a junction number, because it is equal to n+sod(n) for n = 142773199 and 142773208.

It is an unprimeable number.

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, 2099573 + ... + 2099640.

Almost surely, 2^142773242 is an apocalyptic number.

142773242 is a deficient number, since it is larger than the sum of its proper divisors (83984314).

142773242 is a wasteful number, since it uses less digits than its factorization.

142773242 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4199232.

The product of its digits is 18816, while the sum is 32.

The square root of 142773242 is about 11948.7757531891. The cubic root of 142773242 is about 522.6555989047.

The spelling of 142773242 in words is "one hundred forty-two million, seven hundred seventy-three thousand, two hundred forty-two".