1149379387 has 16 divisors (see below), whose sum is σ = 1251774720. Its totient is φ = 1049029632.

The previous prime is 1149379373. The next prime is 1149379409. The reversal of 1149379387 is 7839739411.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1149379387 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1149373387) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 891039 + ... + 892327.

It is an arithmetic number, because the mean of its divisors is an integer number (78235920).

Almost surely, 2^1149379387 is an apocalyptic number.

1149379387 is a deficient number, since it is larger than the sum of its proper divisors (102395333).

1149379387 is a wasteful number, since it uses less digits than its factorization.

1149379387 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2022.

The product of its digits is 1143072, while the sum is 52.

The square root of 1149379387 is about 33902.4982412801. The cubic root of 1149379387 is about 1047.5010526625.

The spelling of 1149379387 in words is "one billion, one hundred forty-nine million, three hundred seventy-nine thousand, three hundred eighty-seven".