1149115655 has 16 divisors (see below), whose sum is σ = 1389561600. Its totient is φ = 912238848.

The previous prime is 1149115637. The next prime is 1149115679. The reversal of 1149115655 is 5565119411.

It is a cyclic number.

It is not a de Polignac number, because 1149115655 - 2²⁴ = 1132338439 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 387659 + ... + 390611.

It is an arithmetic number, because the mean of its divisors is an integer number (86847600).

Almost surely, 2^1149115655 is an apocalyptic number.

1149115655 is a deficient number, since it is larger than the sum of its proper divisors (240445945).

1149115655 is a wasteful number, since it uses less digits than its factorization.

1149115655 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3530.

The product of its digits is 27000, while the sum is 38.

The square root of 1149115655 is about 33898.6084522654. The cubic root of 1149115655 is about 1047.4209280656.

The spelling of 1149115655 in words is "one billion, one hundred forty-nine million, one hundred fifteen thousand, six hundred fifty-five".