1145055823 has 2 divisors, whose sum is σ = 1145055824. Its totient is φ = 1145055822.

The previous prime is 1145055817. The next prime is 1145055839. The reversal of 1145055823 is 3285505411.

It is a weak prime.

It is an emirp because it is prime and its reverse (3285505411) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1145055823 is a prime.

It is a super-2 number, since 2×1145055823² = 2622305675572414658, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1145055883) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 572527911 + 572527912.

It is an arithmetic number, because the mean of its divisors is an integer number (572527912).

Almost surely, 2^1145055823 is an apocalyptic number.

1145055823 is a deficient number, since it is larger than the sum of its proper divisors (1).

1145055823 is an equidigital number, since it uses as much as digits as its factorization.

1145055823 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 24000, while the sum is 34.

The square root of 1145055823 is about 33838.6734816836. The cubic root of 1145055823 is about 1046.1859578815.

The spelling of 1145055823 in words is "one billion, one hundred forty-five million, fifty-five thousand, eight hundred twenty-three".