1149433659 has 20 divisors (see below), whose sum is σ = 1873152600. Its totient is φ = 696625920.

The previous prime is 1149433651. The next prime is 1149433687. The reversal of 1149433659 is 9563349411.

It is not a de Polignac number, because 1149433659 - 2³ = 1149433651 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1149433651) by changing a digit.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 644134 + ... + 645915.

It is an arithmetic number, because the mean of its divisors is an integer number (93657630).

Almost surely, 2^1149433659 is an apocalyptic number.

1149433659 is a deficient number, since it is larger than the sum of its proper divisors (723718941).

1149433659 is a wasteful number, since it uses less digits than its factorization.

1149433659 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1290072 (or 1290063 counting only the distinct ones).

The product of its digits is 349920, while the sum is 45.

The square root of 1149433659 is about 33903.2986448222. The cubic root of 1149433659 is about 1047.5175395548.

The spelling of 1149433659 in words is "one billion, one hundred forty-nine million, four hundred thirty-three thousand, six hundred fifty-nine".