142780222 has 8 divisors (see below), whose sum is σ = 230645016. Its totient is φ = 65898552.

The previous prime is 142780213. The next prime is 142780223. The reversal of 142780222 is 222087241.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (142780223) by changing a digit.

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, 2745748 + ... + 2745799.

It is an arithmetic number, because the mean of its divisors is an integer number (28830627).

Almost surely, 2^142780222 is an apocalyptic number.

142780222 is a deficient number, since it is larger than the sum of its proper divisors (87864794).

142780222 is a wasteful number, since it uses less digits than its factorization.

142780222 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5491562.

The product of its (nonzero) digits is 3584, while the sum is 28.

The square root of 142780222 is about 11949.0678297514. The cubic root of 142780222 is about 522.6641160857.

The spelling of 142780222 in words is "one hundred forty-two million, seven hundred eighty thousand, two hundred twenty-two".