187081012 has 6 divisors (see below), whose sum is σ = 327391778. Its totient is φ = 93540504.

The previous prime is 187081007. The next prime is 187081019. The reversal of 187081012 is 210180781.

It can be written as a sum of positive squares in only one way, i.e., 109746576 + 77334436 = 10476^2 + 8794^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (187081019) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 23385123 + ... + 23385130.

Almost surely, 2^187081012 is an apocalyptic number.

It is an amenable number.

187081012 is a deficient number, since it is larger than the sum of its proper divisors (140310766).

187081012 is a wasteful number, since it uses less digits than its factorization.

187081012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 46770257 (or 46770255 counting only the distinct ones).

The product of its (nonzero) digits is 896, while the sum is 28.

The square root of 187081012 is about 13677.7561025192. The cubic root of 187081012 is about 571.9304730724.

The spelling of 187081012 in words is "one hundred eighty-seven million, eighty-one thousand, twelve".