1155302042 has 4 divisors (see below), whose sum is σ = 1732953066. Its totient is φ = 577651020.

The previous prime is 1155302041. The next prime is 1155302051. The reversal of 1155302042 is 2402035511.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 1068047761 + 87254281 = 32681^2 + 9341^2 .

It is a junction number, because it is equal to n+sod(n) for n = 1155301999 and 1155302017.

It is not an unprimeable number, because it can be changed into a prime (1155302041) by changing a digit.

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 as a sum of consecutive naturals, namely, 288825509 + ... + 288825512.

Almost surely, 2^1155302042 is an apocalyptic number.

1155302042 is a deficient number, since it is larger than the sum of its proper divisors (577651024).

1155302042 is an equidigital number, since it uses as much as digits as its factorization.

1155302042 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 577651023.

The product of its (nonzero) digits is 1200, while the sum is 23.

The square root of 1155302042 is about 33989.7343620100. The cubic root of 1155302042 is about 1049.2971992354.

Adding to 1155302042 its reverse (2402035511), we get a palindrome (3557337553).

The spelling of 1155302042 in words is "one billion, one hundred fifty-five million, three hundred two thousand, forty-two".