195051601 has 2 divisors, whose sum is σ = 195051602.
Its totient is φ = 195051600.
The previous prime is 195051541. The next prime is 195051653. The reversal of 195051601 is 106150591.
It is a strong prime.
It can be written as a sum of positive squares in only one way, i.e., 170041600 + 25010001 = 13040^2 + 5001^2
It is a cyclic number.
It is not a de Polignac number, because 195051601 - 29 = 195051089 is a prime.
It is a Chen prime.
It is a self number, because there is not a number n which added to its sum of digits gives 195051601.
It is not a weakly prime, because it can be changed into another prime (195051671) by changing a digit.
It is a polite number, since it can be written as a sum of consecutive naturals, namely, 97525800 + 97525801.
It is an arithmetic number, because the mean of its divisors is an integer number (97525801).
Almost surely, 2195051601 is an apocalyptic number.
It is an amenable number.
195051601 is a deficient number, since it is larger than the sum of its proper divisors (1).
195051601 is an equidigital number, since it uses as much as digits as its factorization.
195051601 is an odious number, because the sum of its binary digits is odd.
The product of its (nonzero) digits is 1350, while the sum is 28.
The square root of 195051601 is about 13966.0875337369.
The cubic root of 195051601 is about 579.9401454286.
The spelling of 195051601 in words is "one hundred ninety-five million, fifty-one thousand, six hundred one".