194891132 has 24 divisors (see below), whose sum is σ = 363056400. Its totient is φ = 91276416.

The previous prime is 194891119. The next prime is 194891143. The reversal of 194891132 is 231198491.

It is a Harshad number since it is a multiple of its sum of digits (38).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 7643 + ... + 21170.

It is an arithmetic number, because the mean of its divisors is an integer number (15127350).

Almost surely, 2^194891132 is an apocalyptic number.

It is an amenable number.

194891132 is a deficient number, since it is larger than the sum of its proper divisors (168165268).

194891132 is a wasteful number, since it uses less digits than its factorization.

194891132 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28925 (or 28923 counting only the distinct ones).

The product of its digits is 15552, while the sum is 38.

The square root of 194891132 is about 13960.3413998369. The cubic root of 194891132 is about 579.7810628282.

The spelling of 194891132 in words is "one hundred ninety-four million, eight hundred ninety-one thousand, one hundred thirty-two".