195220097 has 4 divisors (see below), whose sum is σ = 195406896. Its totient is φ = 195033300.

The previous prime is 195220087. The next prime is 195220099. The reversal of 195220097 is 790022591.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 790022591 = 18503 ⋅42697.

It is a cyclic number.

It is not a de Polignac number, because 195220097 - 2¹⁴ = 195203713 is a prime.

It is a super-2 number, since 2×195220097² = 76221772545378818, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (195220099) 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, 91823 + ... + 93924.

It is an arithmetic number, because the mean of its divisors is an integer number (48851724).

Almost surely, 2^195220097 is an apocalyptic number.

It is an amenable number.

195220097 is a deficient number, since it is larger than the sum of its proper divisors (186799).

195220097 is a wasteful number, since it uses less digits than its factorization.

195220097 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 186798.

The product of its (nonzero) digits is 11340, while the sum is 35.

The square root of 195220097 is about 13972.1185580427. The cubic root of 195220097 is about 580.1070917988.

The spelling of 195220097 in words is "one hundred ninety-five million, two hundred twenty thousand, ninety-seven".