1155045342 has 16 divisors (see below), whose sum is σ = 2520099072. Its totient is φ = 350013720.

The previous prime is 1155045323. The next prime is 1155045373. The reversal of 1155045342 is 2435405511.

It is a congruent 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 7 ways as a sum of consecutive naturals, for example, 8750278 + ... + 8750409.

It is an arithmetic number, because the mean of its divisors is an integer number (157506192).

Almost surely, 2^1155045342 is an apocalyptic number.

1155045342 is an abundant number, since it is smaller than the sum of its proper divisors (1365053730).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1155045342 is a wasteful number, since it uses less digits than its factorization.

1155045342 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17500703.

The product of its (nonzero) digits is 12000, while the sum is 30.

The square root of 1155045342 is about 33985.9580120967. The cubic root of 1155045342 is about 1049.2194779893.

The spelling of 1155045342 in words is "one billion, one hundred fifty-five million, forty-five thousand, three hundred forty-two".