195021201 has 16 divisors (see below), whose sum is σ = 269357760. Its totient is φ = 125361600.

The previous prime is 195021193. The next prime is 195021251. The reversal of 195021201 is 102120591.

It is not a de Polignac number, because 195021201 - 2³ = 195021193 is a prime.

It is not an unprimeable number, because it can be changed into a prime (195021251) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 112326 + ... + 114048.

It is an arithmetic number, because the mean of its divisors is an integer number (16834860).

Almost surely, 2^195021201 is an apocalyptic number.

It is an amenable number.

195021201 is a deficient number, since it is larger than the sum of its proper divisors (74336559).

195021201 is a wasteful number, since it uses less digits than its factorization.

195021201 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3056.

The product of its (nonzero) digits is 180, while the sum is 21.

The square root of 195021201 is about 13964.9991407089. Note that the first 3 decimals coincide. The cubic root of 195021201 is about 579.9100147754.

Adding to 195021201 its reverse (102120591), we get a palindrome (297141792).

The spelling of 195021201 in words is "one hundred ninety-five million, twenty-one thousand, two hundred one".