1189139516 has 6 divisors (see below), whose sum is σ = 2080994160. Its totient is φ = 594569756.

The previous prime is 1189139507. The next prime is 1189139563. The reversal of 1189139516 is 6159319811.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 148642436 + ... + 148642443.

It is an arithmetic number, because the mean of its divisors is an integer number (346832360).

Almost surely, 2^1189139516 is an apocalyptic number.

It is an amenable number.

1189139516 is a deficient number, since it is larger than the sum of its proper divisors (891854644).

1189139516 is a wasteful number, since it uses less digits than its factorization.

1189139516 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 297284883 (or 297284881 counting only the distinct ones).

The product of its digits is 58320, while the sum is 44.

The square root of 1189139516 is about 34483.9022733797. The cubic root of 1189139516 is about 1059.4430193573.

The spelling of 1189139516 in words is "one billion, one hundred eighty-nine million, one hundred thirty-nine thousand, five hundred sixteen".