195165533 has 4 divisors (see below), whose sum is σ = 197060448. Its totient is φ = 193270620.

The previous prime is 195165521. The next prime is 195165571. The reversal of 195165533 is 335561591.

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: 335561591 = 1367 ⋅245473.

It is a cyclic number.

It is not a de Polignac number, because 195165533 - 2¹⁰ = 195164509 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (195165583) 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, 947303 + ... + 947508.

It is an arithmetic number, because the mean of its divisors is an integer number (49265112).

Almost surely, 2^195165533 is an apocalyptic number.

It is an amenable number.

195165533 is a deficient number, since it is larger than the sum of its proper divisors (1894915).

195165533 is a wasteful number, since it uses less digits than its factorization.

195165533 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1894914.

The product of its digits is 60750, while the sum is 38.

The square root of 195165533 is about 13970.1658186294. The cubic root of 195165533 is about 580.0530401355.

The spelling of 195165533 in words is "one hundred ninety-five million, one hundred sixty-five thousand, five hundred thirty-three".