195486287 has 2 divisors, whose sum is σ = 195486288. Its totient is φ = 195486286.

The previous prime is 195486251. The next prime is 195486311. The reversal of 195486287 is 782684591.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 195486287 - 2¹⁶ = 195420751 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (195186287) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 97743143 + 97743144.

It is an arithmetic number, because the mean of its divisors is an integer number (97743144).

Almost surely, 2^195486287 is an apocalyptic number.

195486287 is a deficient number, since it is larger than the sum of its proper divisors (1).

195486287 is an equidigital number, since it uses as much as digits as its factorization.

195486287 is an evil number, because the sum of its binary digits is even.

The product of its digits is 967680, while the sum is 50.

The square root of 195486287 is about 13981.6410696313. The cubic root of 195486287 is about 580.3706380508.

The spelling of 195486287 in words is "one hundred ninety-five million, four hundred eighty-six thousand, two hundred eighty-seven".