194231156 has 12 divisors (see below), whose sum is σ = 388462368. Its totient is φ = 83241912.

The previous prime is 194231153. The next prime is 194231203. The reversal of 194231156 is 651132491.

194231156 is an admirable number.

It is a super-2 number, since 2×194231156² = 75451483922192672, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (194231153) 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, 3468386 + ... + 3468441.

It is an arithmetic number, because the mean of its divisors is an integer number (32371864).

Almost surely, 2^194231156 is an apocalyptic number.

It is an amenable number.

194231156 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

194231156 is a wasteful number, since it uses less digits than its factorization.

194231156 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6936838 (or 6936836 counting only the distinct ones).

The product of its digits is 6480, while the sum is 32.

The square root of 194231156 is about 13936.6838236361. The cubic root of 194231156 is about 579.1258691296.

The spelling of 194231156 in words is "one hundred ninety-four million, two hundred thirty-one thousand, one hundred fifty-six".