1187016613 has 4 divisors (see below), whose sum is σ = 1188093888. Its totient is φ = 1185939340.

The previous prime is 1187016577. The next prime is 1187016641. The reversal of 1187016613 is 3166107811.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 1187016613 - 2¹⁷ = 1186885541 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 (1187016113) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 536983 + ... + 539188.

It is an arithmetic number, because the mean of its divisors is an integer number (297023472).

Almost surely, 2^1187016613 is an apocalyptic number.

It is an amenable number.

1187016613 is a deficient number, since it is larger than the sum of its proper divisors (1077275).

1187016613 is a wasteful number, since it uses less digits than its factorization.

1187016613 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1077274.

The product of its (nonzero) digits is 6048, while the sum is 34.

The square root of 1187016613 is about 34453.1074505624. The cubic root of 1187016613 is about 1058.8121894010.

The spelling of 1187016613 in words is "one billion, one hundred eighty-seven million, sixteen thousand, six hundred thirteen".