1155200242 has 32 divisors (see below), whose sum is σ = 2011426560. Its totient is φ = 487365120.

The previous prime is 1155200237. The next prime is 1155200309. The reversal of 1155200242 is 2420025511.

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 15 ways as a sum of consecutive naturals, for example, 298363 + ... + 302209.

It is an arithmetic number, because the mean of its divisors is an integer number (62857080).

Almost surely, 2^1155200242 is an apocalyptic number.

1155200242 is a deficient number, since it is larger than the sum of its proper divisors (856226318).

1155200242 is a wasteful number, since it uses less digits than its factorization.

1155200242 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4186.

The product of its (nonzero) digits is 800, while the sum is 22.

The square root of 1155200242 is about 33988.2368180522. The cubic root of 1155200242 is about 1049.2663785528.

Adding to 1155200242 its reverse (2420025511), we get a palindrome (3575225753).

It can be divided in two parts, 1155200 and 242, that multiplied together give a square (279558400 = 16720²).

The spelling of 1155200242 in words is "one billion, one hundred fifty-five million, two hundred thousand, two hundred forty-two".