195005901 has 8 divisors (see below), whose sum is σ = 260975520. Its totient is φ = 129520112.

The previous prime is 195005887. The next prime is 195005917. The reversal of 195005901 is 109500591.

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

It is a cyclic number.

It is not a de Polignac number, because 195005901 - 2¹³ = 194997709 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (195005971) 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, 120015 + ... + 121628.

It is an arithmetic number, because the mean of its divisors is an integer number (32621940).

Almost surely, 2^195005901 is an apocalyptic number.

It is an amenable number.

195005901 is a deficient number, since it is larger than the sum of its proper divisors (65969619).

195005901 is a wasteful number, since it uses less digits than its factorization.

195005901 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 241915.

The product of its (nonzero) digits is 2025, while the sum is 30.

The square root of 195005901 is about 13964.4513318641. The cubic root of 195005901 is about 579.8948491503.

It can be divided in two parts, 19500590 and 1, that added together give a palindrome (19500591).

The spelling of 195005901 in words is "one hundred ninety-five million, five thousand, nine hundred one".