1155124142 has 16 divisors (see below), whose sum is σ = 1743003792. Its totient is φ = 574129920.

The previous prime is 1155124129. The next prime is 1155124151. The reversal of 1155124142 is 2414215511.

It is a happy number.

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, 679838 + ... + 681534.

It is an arithmetic number, because the mean of its divisors is an integer number (108937737).

Almost surely, 2^1155124142 is an apocalyptic number.

1155124142 is a deficient number, since it is larger than the sum of its proper divisors (587879650).

1155124142 is a wasteful number, since it uses less digits than its factorization.

1155124142 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3523.

The product of its digits is 1600, while the sum is 26.

The square root of 1155124142 is about 33987.1172946456. The cubic root of 1155124142 is about 1049.2433375475.

Adding to 1155124142 its reverse (2414215511), we get a palindrome (3569339653).

The spelling of 1155124142 in words is "one billion, one hundred fifty-five million, one hundred twenty-four thousand, one hundred forty-two".