195163615 has 4 divisors (see below), whose sum is σ = 234196344. Its totient is φ = 156130888.

The previous prime is 195163603. The next prime is 195163651. The reversal of 195163615 is 516361591.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 516361591 = 101 ⋅5112491.

It is a cyclic number.

It is not a de Polignac number, because 195163615 - 2¹³ = 195155423 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 19516357 + ... + 19516366.

It is an arithmetic number, because the mean of its divisors is an integer number (58549086).

Almost surely, 2^195163615 is an apocalyptic number.

195163615 is a deficient number, since it is larger than the sum of its proper divisors (39032729).

195163615 is an equidigital number, since it uses as much as digits as its factorization.

195163615 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 39032728.

The product of its digits is 24300, while the sum is 37.

The square root of 195163615 is about 13970.0971721746. The cubic root of 195163615 is about 580.0511399616.

The spelling of 195163615 in words is "one hundred ninety-five million, one hundred sixty-three thousand, six hundred fifteen".