1167517387 has 4 divisors (see below), whose sum is σ = 1167682216. Its totient is φ = 1167352560.

The previous prime is 1167517361. The next prime is 1167517391. The reversal of 1167517387 is 7837157611.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 7837157611 = 349 ⋅22456039.

It is a cyclic number.

It is not a de Polignac number, because 1167517387 - 2¹¹ = 1167515339 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1167517787) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 71289 + ... + 86122.

It is an arithmetic number, because the mean of its divisors is an integer number (291920554).

Almost surely, 2^1167517387 is an apocalyptic number.

1167517387 is a deficient number, since it is larger than the sum of its proper divisors (164829).

1167517387 is an equidigital number, since it uses as much as digits as its factorization.

1167517387 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 164828.

The product of its digits is 246960, while the sum is 46.

The square root of 1167517387 is about 34168.9535543598. The cubic root of 1167517387 is about 1052.9824162753.

It can be divided in two parts, 116 and 7517387, that added together give a triangular number (7517503 = T₃₈₇₇).

The spelling of 1167517387 in words is "one billion, one hundred sixty-seven million, five hundred seventeen thousand, three hundred eighty-seven".