1155332542 has 32 divisors (see below), whose sum is σ = 2146560192. Its totient is φ = 454132224.

The previous prime is 1155332539. The next prime is 1155332561. The reversal of 1155332542 is 2452335511.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 8358 + ... + 48790.

It is an arithmetic number, because the mean of its divisors is an integer number (67080006).

Almost surely, 2^1155332542 is an apocalyptic number.

1155332542 is a deficient number, since it is larger than the sum of its proper divisors (991227650).

1155332542 is a wasteful number, since it uses less digits than its factorization.

1155332542 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 40612.

The product of its digits is 18000, while the sum is 31.

The square root of 1155332542 is about 33990.1830239262. The cubic root of 1155332542 is about 1049.3064329774.

The spelling of 1155332542 in words is "one billion, one hundred fifty-five million, three hundred thirty-two thousand, five hundred forty-two".