1149188867 has 4 divisors (see below), whose sum is σ = 1163034600. Its totient is φ = 1135343136.

The previous prime is 1149188861. The next prime is 1149188893. The reversal of 1149188867 is 7688819411.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1149188867 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1149188861) 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, 6922742 + ... + 6922907.

It is an arithmetic number, because the mean of its divisors is an integer number (290758650).

Almost surely, 2^1149188867 is an apocalyptic number.

1149188867 is a deficient number, since it is larger than the sum of its proper divisors (13845733).

1149188867 is an equidigital number, since it uses as much as digits as its factorization.

1149188867 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13845732.

The product of its digits is 774144, while the sum is 53.

The square root of 1149188867 is about 33899.6883024018. The cubic root of 1149188867 is about 1047.4431718819.

The spelling of 1149188867 in words is "one billion, one hundred forty-nine million, one hundred eighty-eight thousand, eight hundred sixty-seven".