142215673 has 2 divisors, whose sum is σ = 142215674. Its totient is φ = 142215672.

The previous prime is 142215649. The next prime is 142215683. The reversal of 142215673 is 376512241.

142215673 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 113998329 + 28217344 = 10677^2 + 5312^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-142215673 is a prime.

It is not a weakly prime, because it can be changed into another prime (142215613) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 71107836 + 71107837.

It is an arithmetic number, because the mean of its divisors is an integer number (71107837).

Almost surely, 2^142215673 is an apocalyptic number.

It is an amenable number.

142215673 is a deficient number, since it is larger than the sum of its proper divisors (1).

142215673 is an equidigital number, since it uses as much as digits as its factorization.

142215673 is an evil number, because the sum of its binary digits is even.

The product of its digits is 10080, while the sum is 31.

The square root of 142215673 is about 11925.4212923485. The cubic root of 142215673 is about 521.9743397397.

The spelling of 142215673 in words is "one hundred forty-two million, two hundred fifteen thousand, six hundred seventy-three".