195093811 has 4 divisors (see below), whose sum is σ = 212829624. Its totient is φ = 177358000.

The previous prime is 195093809. The next prime is 195093823. The reversal of 195093811 is 118390591.

It is a happy number.

195093811 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is a cyclic number.

It is not a de Polignac number, because 195093811 - 2¹ = 195093809 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (195093511) 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, 8867890 + ... + 8867911.

It is an arithmetic number, because the mean of its divisors is an integer number (53207406).

Almost surely, 2^195093811 is an apocalyptic number.

195093811 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

195093811 is the 6247-th centered decagonal number.

195093811 is a deficient number, since it is larger than the sum of its proper divisors (17735813).

195093811 is a wasteful number, since it uses less digits than its factorization.

195093811 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17735812.

The product of its (nonzero) digits is 9720, while the sum is 37.

The square root of 195093811 is about 13967.5986125032. The cubic root of 195093811 is about 579.9819762532.

The spelling of 195093811 in words is "one hundred ninety-five million, ninety-three thousand, eight hundred eleven".