195098087 has 4 divisors (see below), whose sum is σ = 195346776. Its totient is φ = 194849400.

The previous prime is 195098083. The next prime is 195098089. The reversal of 195098087 is 780890591.

It is a happy number.

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 195098087 - 2² = 195098083 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (195098083) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 123164 + ... + 124737.

It is an arithmetic number, because the mean of its divisors is an integer number (48836694).

Almost surely, 2^195098087 is an apocalyptic number.

195098087 is a deficient number, since it is larger than the sum of its proper divisors (248689).

195098087 is an equidigital number, since it uses as much as digits as its factorization.

195098087 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 248688.

The product of its (nonzero) digits is 181440, while the sum is 47.

The square root of 195098087 is about 13967.7516802097. The cubic root of 195098087 is about 579.9862135050.

The spelling of 195098087 in words is "one hundred ninety-five million, ninety-eight thousand, eighty-seven".