195012133 has 4 divisors (see below), whose sum is σ = 195753888. Its totient is φ = 194270380.

The previous prime is 195012109. The next prime is 195012137. The reversal of 195012133 is 331210591.

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.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-195012133 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 195012098 and 195012107.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (195012137) 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, 370483 + ... + 371008.

It is an arithmetic number, because the mean of its divisors is an integer number (48938472).

Almost surely, 2^195012133 is an apocalyptic number.

It is an amenable number.

195012133 is a deficient number, since it is larger than the sum of its proper divisors (741755).

195012133 is an equidigital number, since it uses as much as digits as its factorization.

195012133 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 741754.

The product of its (nonzero) digits is 810, while the sum is 25.

The square root of 195012133 is about 13964.6744680999. The cubic root of 195012133 is about 579.9010265124.

The spelling of 195012133 in words is "one hundred ninety-five million, twelve thousand, one hundred thirty-three".