195075381 has 8 divisors (see below), whose sum is σ = 260185120. Its totient is φ = 130007952.

The previous prime is 195075313. The next prime is 195075383. The reversal of 195075381 is 183570591.

195075381 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 195075381 - 2²¹ = 192978229 is a prime.

It is a super-2 number, since 2×195075381² = 76108808544590322, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (195075383) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2490 + ... + 19908.

It is an arithmetic number, because the mean of its divisors is an integer number (32523140).

Almost surely, 2^195075381 is an apocalyptic number.

195075381 is the 7466-th nonagonal number.

It is an amenable number.

195075381 is a deficient number, since it is larger than the sum of its proper divisors (65109739).

195075381 is a wasteful number, since it uses less digits than its factorization.

195075381 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21155.

The product of its (nonzero) digits is 37800, while the sum is 39.

The square root of 195075381 is about 13966.9388557407. The cubic root of 195075381 is about 579.9637125534.

The spelling of 195075381 in words is "one hundred ninety-five million, seventy-five thousand, three hundred eighty-one".