1119139187 has 4 divisors (see below), whose sum is σ = 1130004720. Its totient is φ = 1108273656.

The previous prime is 1119139183. The next prime is 1119139193. The reversal of 1119139187 is 7819319111.

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 1119139187 - 2² = 1119139183 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1119139183) 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, 5432612 + ... + 5432817.

It is an arithmetic number, because the mean of its divisors is an integer number (282501180).

Almost surely, 2^1119139187 is an apocalyptic number.

1119139187 is a deficient number, since it is larger than the sum of its proper divisors (10865533).

1119139187 is a wasteful number, since it uses less digits than its factorization.

1119139187 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10865532.

The product of its digits is 13608, while the sum is 41.

The square root of 1119139187 is about 33453.5377351933. The cubic root of 1119139187 is about 1038.2326946534.

The spelling of 1119139187 in words is "one billion, one hundred nineteen million, one hundred thirty-nine thousand, one hundred eighty-seven".