195019413 has 4 divisors (see below), whose sum is σ = 260025888. Its totient is φ = 130012940.

The previous prime is 195019399. The next prime is 195019417. The reversal of 195019413 is 314910591.

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: 314910591 = 3 ⋅104970197.

It is a cyclic number.

It is not a de Polignac number, because 195019413 - 2¹⁰ = 195018389 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (195019417) 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, 32503233 + ... + 32503238.

It is an arithmetic number, because the mean of its divisors is an integer number (65006472).

Almost surely, 2^195019413 is an apocalyptic number.

It is an amenable number.

195019413 is a deficient number, since it is larger than the sum of its proper divisors (65006475).

195019413 is an equidigital number, since it uses as much as digits as its factorization.

195019413 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 65006474.

The product of its (nonzero) digits is 4860, while the sum is 33.

The square root of 195019413 is about 13964.9351233724. The cubic root of 195019413 is about 579.9082425198.

The spelling of 195019413 in words is "one hundred ninety-five million, nineteen thousand, four hundred thirteen".