130636278 has 12 divisors (see below), whose sum is σ = 283045308. Its totient is φ = 43545420.

The previous prime is 130636243. The next prime is 130636309. The reversal of 130636278 is 872636031.

It is a happy number.

130636278 is a `hidden beast` number, since 13 + 0 + 636 + 2 + 7 + 8 = 666.

It is a congruent number.

It is an unprimeable number.

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 5 ways as a sum of consecutive naturals, for example, 3628768 + ... + 3628803.

It is an arithmetic number, because the mean of its divisors is an integer number (23587109).

Almost surely, 2^130636278 is an apocalyptic number.

130636278 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

130636278 is an abundant number, since it is smaller than the sum of its proper divisors (152409030).

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

130636278 is a wasteful number, since it uses less digits than its factorization.

130636278 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7257579 (or 7257576 counting only the distinct ones).

The product of its (nonzero) digits is 36288, while the sum is 36.

The square root of 130636278 is about 11429.6228284226. The cubic root of 130636278 is about 507.4048328756.

The spelling of 130636278 in words is "one hundred thirty million, six hundred thirty-six thousand, two hundred seventy-eight".