195810151 has 2 divisors, whose sum is σ = 195810152. Its totient is φ = 195810150.

The previous prime is 195810133. The next prime is 195810157. The reversal of 195810151 is 151018591.

It is a strong prime.

It is an emirp because it is prime and its reverse (151018591) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 195810151 - 2¹³ = 195801959 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (195810157) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 97905075 + 97905076.

It is an arithmetic number, because the mean of its divisors is an integer number (97905076).

Almost surely, 2^195810151 is an apocalyptic number.

195810151 is a deficient number, since it is larger than the sum of its proper divisors (1).

195810151 is an equidigital number, since it uses as much as digits as its factorization.

195810151 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1800, while the sum is 31.

The square root of 195810151 is about 13993.2180358915. The cubic root of 195810151 is about 580.6909630816.

The spelling of 195810151 in words is "one hundred ninety-five million, eight hundred ten thousand, one hundred fifty-one".