194870995 has 16 divisors (see below), whose sum is σ = 255931488. Its totient is φ = 141264640.

The previous prime is 194870989. The next prime is 194870999. The reversal of 194870995 is 599078491.

It is not a de Polignac number, because 194870995 - 2³ = 194870987 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (194870999) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 11847 + ... + 23023.

It is an arithmetic number, because the mean of its divisors is an integer number (15995718).

Almost surely, 2^194870995 is an apocalyptic number.

194870995 is a deficient number, since it is larger than the sum of its proper divisors (61060493).

194870995 is a wasteful number, since it uses less digits than its factorization.

194870995 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11510.

The product of its (nonzero) digits is 816480, while the sum is 52.

The square root of 194870995 is about 13959.6201595889. The cubic root of 194870995 is about 579.7610936395.

The spelling of 194870995 in words is "one hundred ninety-four million, eight hundred seventy thousand, nine hundred ninety-five".