142474847 has 2 divisors, whose sum is σ = 142474848. Its totient is φ = 142474846.

The previous prime is 142474799. The next prime is 142474873. The reversal of 142474847 is 748474241.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 142474847 - 2¹² = 142470751 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (142474447) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 71237423 + 71237424.

It is an arithmetic number, because the mean of its divisors is an integer number (71237424).

Almost surely, 2^142474847 is an apocalyptic number.

142474847 is a deficient number, since it is larger than the sum of its proper divisors (1).

142474847 is an equidigital number, since it uses as much as digits as its factorization.

142474847 is an evil number, because the sum of its binary digits is even.

The product of its digits is 200704, while the sum is 41.

The square root of 142474847 is about 11936.2827965829. The cubic root of 142474847 is about 522.2912295224.

The spelling of 142474847 in words is "one hundred forty-two million, four hundred seventy-four thousand, eight hundred forty-seven".