146942997847 has 2 divisors, whose sum is σ = 146942997848. Its totient is φ = 146942997846.

The previous prime is 146942997811. The next prime is 146942997857. The reversal of 146942997847 is 748799249641.

It is a strong prime.

It is an emirp because it is prime and its reverse (748799249641) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 146942997847 - 2¹¹ = 146942995799 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (146942997857) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 73471498923 + 73471498924.

It is an arithmetic number, because the mean of its divisors is an integer number (73471498924).

Almost surely, 2^146942997847 is an apocalyptic number.

146942997847 is a deficient number, since it is larger than the sum of its proper divisors (1).

146942997847 is an equidigital number, since it uses as much as digits as its factorization.

146942997847 is an evil number, because the sum of its binary digits is even.

The product of its digits is 219469824, while the sum is 70.

The spelling of 146942997847 in words is "one hundred forty-six billion, nine hundred forty-two million, nine hundred ninety-seven thousand, eight hundred forty-seven".