194953947 has 16 divisors (see below), whose sum is σ = 268815360. Its totient is φ = 125546400.

The previous prime is 194953933. The next prime is 194953961. The reversal of 194953947 is 749359491.

It is an interprime number because it is at equal distance from previous prime (194953933) and next prime (194953961).

It is not a de Polignac number, because 194953947 - 2⁸ = 194953691 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 194953947.

It is not an unprimeable number, because it can be changed into a prime (194953907) 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 15 ways as a sum of consecutive naturals, for example, 59697 + ... + 62877.

It is an arithmetic number, because the mean of its divisors is an integer number (16800960).

Almost surely, 2^194953947 is an apocalyptic number.

194953947 is a deficient number, since it is larger than the sum of its proper divisors (73861413).

194953947 is a wasteful number, since it uses less digits than its factorization.

194953947 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3874.

The product of its digits is 1224720, while the sum is 51.

The square root of 194953947 is about 13962.5909844842. The cubic root of 194953947 is about 579.8433455243.

The spelling of 194953947 in words is "one hundred ninety-four million, nine hundred fifty-three thousand, nine hundred forty-seven".