613130887 has 4 divisors (see below), whose sum is σ = 613871320. Its totient is φ = 612390456.

The previous prime is 613130867. The next prime is 613130897. The reversal of 613130887 is 788031316.

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

It is a cyclic number.

It is not a de Polignac number, because 613130887 - 2¹⁵ = 613098119 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (613130827) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 368973 + ... + 370630.

It is an arithmetic number, because the mean of its divisors is an integer number (153467830).

Almost surely, 2^613130887 is an apocalyptic number.

613130887 is a deficient number, since it is larger than the sum of its proper divisors (740433).

613130887 is an equidigital number, since it uses as much as digits as its factorization.

613130887 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 740432.

The product of its (nonzero) digits is 24192, while the sum is 37.

The square root of 613130887 is about 24761.4799032691. The cubic root of 613130887 is about 849.5411073178.

The spelling of 613130887 in words is "six hundred thirteen million, one hundred thirty thousand, eight hundred eighty-seven".