187136484 has 12 divisors (see below), whose sum is σ = 436651824. Its totient is φ = 62378824.

The previous prime is 187136483. The next prime is 187136489. The reversal of 187136484 is 484631781.

It is a tau number, because it is divible by the number of its divisors (12).

It is not an unprimeable number, because it can be changed into a prime (187136483) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7797342 + ... + 7797365.

It is an arithmetic number, because the mean of its divisors is an integer number (36387652).

Almost surely, 2^187136484 is an apocalyptic number.

It is an amenable number.

187136484 is an abundant number, since it is smaller than the sum of its proper divisors (249515340).

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

187136484 is a wasteful number, since it uses less digits than its factorization.

187136484 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15594714 (or 15594712 counting only the distinct ones).

The product of its digits is 129024, while the sum is 42.

The square root of 187136484 is about 13679.7837702209. The cubic root of 187136484 is about 571.9869958085.

The spelling of 187136484 in words is "one hundred eighty-seven million, one hundred thirty-six thousand, four hundred eighty-four".