1141243355 has 16 divisors (see below), whose sum is σ = 1607436480. Its totient is φ = 761415552.

The previous prime is 1141243343. The next prime is 1141243357. The reversal of 1141243355 is 5533421411.

It is a cyclic number.

It is not a de Polignac number, because 1141243355 - 2²⁰ = 1140194779 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1141243357) by changing a digit.

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, 439340 + ... + 441929.

It is an arithmetic number, because the mean of its divisors is an integer number (100464780).

Almost surely, 2^1141243355 is an apocalyptic number.

1141243355 is a deficient number, since it is larger than the sum of its proper divisors (466193125).

1141243355 is an equidigital number, since it uses as much as digits as its factorization.

1141243355 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 881318.

The product of its digits is 7200, while the sum is 29.

The square root of 1141243355 is about 33782.2935130225. The cubic root of 1141243355 is about 1045.0235734096.

Adding to 1141243355 its reverse (5533421411), we get a palindrome (6674664766).

The spelling of 1141243355 in words is "one billion, one hundred forty-one million, two hundred forty-three thousand, three hundred fifty-five".