130174987 has 4 divisors (see below), whose sum is σ = 131958280. Its totient is φ = 128391696.

The previous prime is 130174951. The next prime is 130175011. The reversal of 130174987 is 789471031.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-130174987 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (130174907) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 891537 + ... + 891682.

It is an arithmetic number, because the mean of its divisors is an integer number (32989570).

Almost surely, 2^130174987 is an apocalyptic number.

130174987 is a deficient number, since it is larger than the sum of its proper divisors (1783293).

130174987 is an equidigital number, since it uses as much as digits as its factorization.

130174987 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1783292.

The product of its (nonzero) digits is 42336, while the sum is 40.

The square root of 130174987 is about 11409.4253580099. The cubic root of 130174987 is about 506.8068945214.

The spelling of 130174987 in words is "one hundred thirty million, one hundred seventy-four thousand, nine hundred eighty-seven".