194130136 has 8 divisors (see below), whose sum is σ = 363994020. Its totient is φ = 97065064.

The previous prime is 194130113. The next prime is 194130137. The reversal of 194130136 is 631031491.

It is a tau number, because it is divible by the number of its divisors (8).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (194130137) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 12133126 + ... + 12133141.

Almost surely, 2^194130136 is an apocalyptic number.

It is an amenable number.

194130136 is a deficient number, since it is larger than the sum of its proper divisors (169863884).

194130136 is a wasteful number, since it uses less digits than its factorization.

194130136 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24266273 (or 24266269 counting only the distinct ones).

The product of its (nonzero) digits is 1944, while the sum is 28.

The square root of 194130136 is about 13933.0591041594. The cubic root of 194130136 is about 579.0254502233.

The spelling of 194130136 in words is "one hundred ninety-four million, one hundred thirty thousand, one hundred thirty-six".