142222147 has 2 divisors, whose sum is σ = 142222148. Its totient is φ = 142222146.

The previous prime is 142222121. The next prime is 142222151. The reversal of 142222147 is 741222241.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 142222147 - 2¹⁹ = 141697859 is a prime.

It is not a weakly prime, because it can be changed into another prime (142225147) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 71111073 + 71111074.

It is an arithmetic number, because the mean of its divisors is an integer number (71111074).

Almost surely, 2^142222147 is an apocalyptic number.

142222147 is a deficient number, since it is larger than the sum of its proper divisors (1).

142222147 is an equidigital number, since it uses as much as digits as its factorization.

142222147 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1792, while the sum is 25.

The square root of 142222147 is about 11925.6927262109. The cubic root of 142222147 is about 521.9822601293.

Adding to 142222147 its reverse (741222241), we get a palindrome (883444388).

The spelling of 142222147 in words is "one hundred forty-two million, two hundred twenty-two thousand, one hundred forty-seven".