1155106055 has 16 divisors (see below), whose sum is σ = 1468471680. Its totient is φ = 869248512.

The previous prime is 1155106049. The next prime is 1155106081. The reversal of 1155106055 is 5506015511.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 1155106055 - 2¹⁴ = 1155089671 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 262937 + ... + 267293.

It is an arithmetic number, because the mean of its divisors is an integer number (91779480).

Almost surely, 2^1155106055 is an apocalyptic number.

1155106055 is a deficient number, since it is larger than the sum of its proper divisors (313365625).

1155106055 is a wasteful number, since it uses less digits than its factorization.

1155106055 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7498.

The product of its (nonzero) digits is 3750, while the sum is 29.

The square root of 1155106055 is about 33986.8512074891. The cubic root of 1155106055 is about 1049.2378611481.

The spelling of 1155106055 in words is "one billion, one hundred fifty-five million, one hundred six thousand, fifty-five".