194912073 has 12 divisors (see below), whose sum is σ = 288407028. Its totient is φ = 126771840.

The previous prime is 194912059. The next prime is 194912083. The reversal of 194912073 is 370219491.

It can be written as a sum of positive squares in 2 ways, for example, as 43917129 + 150994944 = 6627^2 + 12288^2 .

It is not a de Polignac number, because 194912073 - 2⁴ = 194912057 is a prime.

It is a Smith number, since the sum of its digits (36) coincides with the sum of the digits of its prime factors.

It is not an unprimeable number, because it can be changed into a prime (194912083) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 263740 + ... + 264477.

It is an arithmetic number, because the mean of its divisors is an integer number (24033919).

Almost surely, 2^194912073 is an apocalyptic number.

It is an amenable number.

194912073 is a deficient number, since it is larger than the sum of its proper divisors (93494955).

194912073 is a wasteful number, since it uses less digits than its factorization.

194912073 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 528264 (or 528261 counting only the distinct ones).

The product of its (nonzero) digits is 13608, while the sum is 36.

The square root of 194912073 is about 13961.0913971652. The cubic root of 194912073 is about 579.8018278579.

The spelling of 194912073 in words is "one hundred ninety-four million, nine hundred twelve thousand, seventy-three".