142142246 has 4 divisors (see below), whose sum is σ = 213213372. Its totient is φ = 71071122.

The previous prime is 142142233. The next prime is 142142257. The reversal of 142142246 is 642241241.

142142246 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 35535560 + ... + 35535563.

It is an arithmetic number, because the mean of its divisors is an integer number (53303343).

Almost surely, 2^142142246 is an apocalyptic number.

142142246 is a deficient number, since it is larger than the sum of its proper divisors (71071126).

142142246 is an equidigital number, since it uses as much as digits as its factorization.

142142246 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 71071125.

The product of its digits is 3072, while the sum is 26.

The square root of 142142246 is about 11922.3423034234. The cubic root of 142142246 is about 521.8844912087.

Adding to 142142246 its reverse (642241241), we get a palindrome (784383487).

The spelling of 142142246 in words is "one hundred forty-two million, one hundred forty-two thousand, two hundred forty-six".