1156165433 has 2 divisors, whose sum is σ = 1156165434. Its totient is φ = 1156165432.

The previous prime is 1156165379. The next prime is 1156165441. The reversal of 1156165433 is 3345616511.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 634636864 + 521528569 = 25192^2 + 22837^2 .

It is an emirp because it is prime and its reverse (3345616511) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1156165433 - 2⁶ = 1156165369 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 1156165393 and 1156165402.

It is not a weakly prime, because it can be changed into another prime (1156165453) 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 as a sum of consecutive naturals, namely, 578082716 + 578082717.

It is an arithmetic number, because the mean of its divisors is an integer number (578082717).

Almost surely, 2^1156165433 is an apocalyptic number.

It is an amenable number.

1156165433 is a deficient number, since it is larger than the sum of its proper divisors (1).

1156165433 is an equidigital number, since it uses as much as digits as its factorization.

1156165433 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 32400, while the sum is 35.

The square root of 1156165433 is about 34002.4327512018. The cubic root of 1156165433 is about 1049.5585243080.

The spelling of 1156165433 in words is "one billion, one hundred fifty-six million, one hundred sixty-five thousand, four hundred thirty-three".