1155149435 has 32 divisors (see below), whose sum is σ = 1603252224. Its totient is φ = 790992000.

The previous prime is 1155149417. The next prime is 1155149461. The reversal of 1155149435 is 5349415511.

It is a de Polignac number, because none of the positive numbers 2^k-1155149435 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 53930 + ... + 72240.

It is an arithmetic number, because the mean of its divisors is an integer number (50101632).

Almost surely, 2^1155149435 is an apocalyptic number.

1155149435 is a deficient number, since it is larger than the sum of its proper divisors (448102789).

1155149435 is a wasteful number, since it uses less digits than its factorization.

1155149435 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18395.

The product of its digits is 54000, while the sum is 38.

The square root of 1155149435 is about 33987.4893894798. The cubic root of 1155149435 is about 1049.2509956906.

The spelling of 1155149435 in words is "one billion, one hundred fifty-five million, one hundred forty-nine thousand, four hundred thirty-five".