190195901 has 16 divisors (see below), whose sum is σ = 231456000. Its totient is φ = 155930544.

The previous prime is 190195883. The next prime is 190195919. The reversal of 190195901 is 109591091.

It is an interprime number because it is at equal distance from previous prime (190195883) and next prime (190195919).

It is not a de Polignac number, because 190195901 - 2¹⁰ = 190194877 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 (190195991) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4166 + ... + 19943.

It is an arithmetic number, because the mean of its divisors is an integer number (14466000).

Almost surely, 2^190195901 is an apocalyptic number.

It is an amenable number.

190195901 is a deficient number, since it is larger than the sum of its proper divisors (41260099).

190195901 is an equidigital number, since it uses as much as digits as its factorization.

190195901 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24153 (or 24139 counting only the distinct ones).

The product of its (nonzero) digits is 3645, while the sum is 35.

The square root of 190195901 is about 13791.1529974836. The cubic root of 190195901 is about 575.0872215513.

The spelling of 190195901 in words is "one hundred ninety million, one hundred ninety-five thousand, nine hundred one".