1136912387 has 4 divisors (see below), whose sum is σ = 1224367200. Its totient is φ = 1049457576.

The previous prime is 1136912377. The next prime is 1136912419. The reversal of 1136912387 is 7832196311.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 7832196311 = 40063 ⋅195497.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1136912387 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1136912377) 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, 43727387 + ... + 43727412.

It is an arithmetic number, because the mean of its divisors is an integer number (306091800).

Almost surely, 2^1136912387 is an apocalyptic number.

1136912387 is a deficient number, since it is larger than the sum of its proper divisors (87454813).

1136912387 is an equidigital number, since it uses as much as digits as its factorization.

1136912387 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 87454812.

The product of its digits is 54432, while the sum is 41.

The square root of 1136912387 is about 33718.1314280611. The cubic root of 1136912387 is about 1043.6999582448.

The spelling of 1136912387 in words is "one billion, one hundred thirty-six million, nine hundred twelve thousand, three hundred eighty-seven".