142118146 has 4 divisors (see below), whose sum is σ = 213177222. Its totient is φ = 71059072.

The previous prime is 142118111. The next prime is 142118159. The reversal of 142118146 is 641811241.

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

It can be written as a sum of positive squares in only one way, i.e., 73874025 + 68244121 = 8595^2 + 8261^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 35529535 + ... + 35529538.

Almost surely, 2^142118146 is an apocalyptic number.

142118146 is a deficient number, since it is larger than the sum of its proper divisors (71059076).

142118146 is an equidigital number, since it uses as much as digits as its factorization.

142118146 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 71059075.

The product of its digits is 1536, while the sum is 28.

The square root of 142118146 is about 11921.3315531446. The cubic root of 142118146 is about 521.8549946363.

Adding to 142118146 its reverse (641811241), we get a palindrome (783929387).

The spelling of 142118146 in words is "one hundred forty-two million, one hundred eighteen thousand, one hundred forty-six".