192781145147 has 2 divisors, whose sum is σ = 192781145148. Its totient is φ = 192781145146.

The previous prime is 192781145143. The next prime is 192781145173. The reversal of 192781145147 is 741541187291.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 192781145147 - 2² = 192781145143 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 192781145095 and 192781145104.

It is not a weakly prime, because it can be changed into another prime (192781145143) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 96390572573 + 96390572574.

It is an arithmetic number, because the mean of its divisors is an integer number (96390572574).

Almost surely, 2^192781145147 is an apocalyptic number.

192781145147 is a deficient number, since it is larger than the sum of its proper divisors (1).

192781145147 is an equidigital number, since it uses as much as digits as its factorization.

192781145147 is an evil number, because the sum of its binary digits is even.

The product of its digits is 564480, while the sum is 50.

The spelling of 192781145147 in words is "one hundred ninety-two billion, seven hundred eighty-one million, one hundred forty-five thousand, one hundred forty-seven".