1155641433 has 4 divisors (see below), whose sum is σ = 1540855248. Its totient is φ = 770427620.

The previous prime is 1155641429. The next prime is 1155641441. The reversal of 1155641433 is 3341465511.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 3341465511 = 3 ⋅1113821837.

It is a cyclic number.

It is not a de Polignac number, because 1155641433 - 2² = 1155641429 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 1155641394 and 1155641403.

It is not an unprimeable number, because it can be changed into a prime (1155641423) 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 in 3 ways as a sum of consecutive naturals, for example, 192606903 + ... + 192606908.

It is an arithmetic number, because the mean of its divisors is an integer number (385213812).

Almost surely, 2^1155641433 is an apocalyptic number.

It is an amenable number.

1155641433 is a deficient number, since it is larger than the sum of its proper divisors (385213815).

1155641433 is an equidigital number, since it uses as much as digits as its factorization.

1155641433 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 385213814.

The product of its digits is 21600, while the sum is 33.

The square root of 1155641433 is about 33994.7265469220. The cubic root of 1155641433 is about 1049.3999392249.

The spelling of 1155641433 in words is "one billion, one hundred fifty-five million, six hundred forty-one thousand, four hundred thirty-three".