142322402 has 8 divisors (see below), whose sum is σ = 226041516. Its totient is φ = 66975232.

The previous prime is 142322399. The next prime is 142322443. The reversal of 142322402 is 204223241.

It can be written as a sum of positive squares in 2 ways, for example, as 141158161 + 1164241 = 11881^2 + 1079^2 .

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

It is a super-2 number, since 2×142322402² = 40511332222099208, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2092943 + ... + 2093010.

Almost surely, 2^142322402 is an apocalyptic number.

142322402 is a deficient number, since it is larger than the sum of its proper divisors (83719114).

142322402 is a wasteful number, since it uses less digits than its factorization.

142322402 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4185972.

The product of its (nonzero) digits is 768, while the sum is 20.

The square root of 142322402 is about 11929.8953054920. The cubic root of 142322402 is about 522.1048829438.

Adding to 142322402 its reverse (204223241), we get a palindrome (346545643).

The spelling of 142322402 in words is "one hundred forty-two million, three hundred twenty-two thousand, four hundred two".