1161589823 has 2 divisors, whose sum is σ = 1161589824. Its totient is φ = 1161589822.

The previous prime is 1161589721. The next prime is 1161589837. The reversal of 1161589823 is 3289851611.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 1161589823 - 2¹² = 1161585727 is a prime.

It is a super-4 number, since 4×1161589823⁴ (a number of 37 digits) contains 4444 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1161589853) 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, 580794911 + 580794912.

It is an arithmetic number, because the mean of its divisors is an integer number (580794912).

Almost surely, 2^1161589823 is an apocalyptic number.

1161589823 is a deficient number, since it is larger than the sum of its proper divisors (1).

1161589823 is an equidigital number, since it uses as much as digits as its factorization.

1161589823 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 103680, while the sum is 44.

The square root of 1161589823 is about 34082.1041457243. The cubic root of 1161589823 is about 1051.1973711672.

The spelling of 1161589823 in words is "one billion, one hundred sixty-one million, five hundred eighty-nine thousand, eight hundred twenty-three".