87130419 has 8 divisors (see below), whose sum is σ = 117810432. Its totient is φ = 57268680.

The previous prime is 87130399. The next prime is 87130441. The reversal of 87130419 is 91403178.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 87130419 - 2⁷ = 87130291 is a prime.

It is a super-2 number, since 2×87130419² = 15183419830231122, which contains 22 as substring.

It is a Smith number, since the sum of its digits (33) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a self number, because there is not a number n which added to its sum of digits gives 87130419.

It is not an unprimeable number, because it can be changed into a prime (87130469) 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 7 ways as a sum of consecutive naturals, for example, 204319 + ... + 204744.

It is an arithmetic number, because the mean of its divisors is an integer number (14726304).

Almost surely, 2^87130419 is an apocalyptic number.

87130419 is a deficient number, since it is larger than the sum of its proper divisors (30680013).

87130419 is a wasteful number, since it uses less digits than its factorization.

87130419 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 409137.

The product of its (nonzero) digits is 6048, while the sum is 33.

The square root of 87130419 is about 9334.3676272150. The cubic root of 87130419 is about 443.3260664885.

The spelling of 87130419 in words is "eighty-seven million, one hundred thirty thousand, four hundred nineteen".