142278847 has 2 divisors, whose sum is σ = 142278848. Its totient is φ = 142278846.

The previous prime is 142278841. The next prime is 142278853. The reversal of 142278847 is 748872241.

142278847 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a balanced prime because it is at equal distance from previous prime (142278841) and next prime (142278853).

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-142278847 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (142278841) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 71139423 + 71139424.

It is an arithmetic number, because the mean of its divisors is an integer number (71139424).

Almost surely, 2^142278847 is an apocalyptic number.

142278847 is a deficient number, since it is larger than the sum of its proper divisors (1).

142278847 is an equidigital number, since it uses as much as digits as its factorization.

142278847 is an evil number, because the sum of its binary digits is even.

The product of its digits is 200704, while the sum is 43.

The square root of 142278847 is about 11928.0697097225. The cubic root of 142278847 is about 522.0516174986.

The spelling of 142278847 in words is "one hundred forty-two million, two hundred seventy-eight thousand, eight hundred forty-seven".