142205330 has 8 divisors (see below), whose sum is σ = 255969612. Its totient is φ = 56882128.

The previous prime is 142205279. The next prime is 142205333. The reversal of 142205330 is 33502241.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 134258569 + 7946761 = 11587^2 + 2819^2 .

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

It is not an unprimeable number, because it can be changed into a prime (142205333) 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, 7110257 + ... + 7110276.

Almost surely, 2^142205330 is an apocalyptic number.

142205330 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

142205330 is a deficient number, since it is larger than the sum of its proper divisors (113764282).

142205330 is a wasteful number, since it uses less digits than its factorization.

142205330 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14220540.

The product of its (nonzero) digits is 720, while the sum is 20.

The square root of 142205330 is about 11924.9876310208. The cubic root of 142205330 is about 521.9616854582.

Adding to 142205330 its reverse (33502241), we get a palindrome (175707571).

The spelling of 142205330 in words is "one hundred forty-two million, two hundred five thousand, three hundred thirty".