1155134305 has 16 divisors (see below), whose sum is σ = 1500307200. Its totient is φ = 848726208.

The previous prime is 1155134263. The next prime is 1155134347. The reversal of 1155134305 is 5034315511.

It is an interprime number because it is at equal distance from previous prime (1155134263) and next prime (1155134347).

It is a cyclic number.

It is not a de Polignac number, because 1155134305 - 2¹¹ = 1155132257 is a prime.

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, 31717 + ... + 57586.

It is an arithmetic number, because the mean of its divisors is an integer number (93769200).

Almost surely, 2^1155134305 is an apocalyptic number.

It is an amenable number.

1155134305 is a deficient number, since it is larger than the sum of its proper divisors (345172895).

1155134305 is a wasteful number, since it uses less digits than its factorization.

1155134305 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 89520.

The product of its (nonzero) digits is 4500, while the sum is 28.

The square root of 1155134305 is about 33987.2668068499. The cubic root of 1155134305 is about 1049.2464146854.

Adding to 1155134305 its reverse (5034315511), we get a palindrome (6189449816).

It can be divided in two parts, 1155 and 134305, that added together give a triangular number (135460 = T₅₂₀).

The spelling of 1155134305 in words is "one billion, one hundred fifty-five million, one hundred thirty-four thousand, three hundred five".