195462121 has 4 divisors (see below), whose sum is σ = 196222932. Its totient is φ = 194701312.

The previous prime is 195462097. The next prime is 195462131. The reversal of 195462121 is 121264591.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 194295721 + 1166400 = 13939^2 + 1080^2 .

It is a cyclic number.

It is not a de Polignac number, because 195462121 - 2⁷ = 195461993 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (195462131) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 380020 + ... + 380533.

It is an arithmetic number, because the mean of its divisors is an integer number (49055733).

Almost surely, 2^195462121 is an apocalyptic number.

It is an amenable number.

195462121 is a deficient number, since it is larger than the sum of its proper divisors (760811).

195462121 is an equidigital number, since it uses as much as digits as its factorization.

195462121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 760810.

The product of its digits is 4320, while the sum is 31.

The square root of 195462121 is about 13980.7768382161. The cubic root of 195462121 is about 580.3467219404.

The spelling of 195462121 in words is "one hundred ninety-five million, four hundred sixty-two thousand, one hundred twenty-one".