195061871 has 2 divisors, whose sum is σ = 195061872. Its totient is φ = 195061870.

The previous prime is 195061837. The next prime is 195061877. The reversal of 195061871 is 178160591.

195061871 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 195061871 - 2¹⁰ = 195060847 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (195061877) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 97530935 + 97530936.

It is an arithmetic number, because the mean of its divisors is an integer number (97530936).

Almost surely, 2^195061871 is an apocalyptic number.

195061871 is a deficient number, since it is larger than the sum of its proper divisors (1).

195061871 is an equidigital number, since it uses as much as digits as its factorization.

195061871 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 15120, while the sum is 38.

The square root of 195061871 is about 13966.4552052409. The cubic root of 195061871 is about 579.9503237280.

The spelling of 195061871 in words is "one hundred ninety-five million, sixty-one thousand, eight hundred seventy-one".