1155263623 has 2 divisors, whose sum is σ = 1155263624. Its totient is φ = 1155263622.

The previous prime is 1155263563. The next prime is 1155263651. The reversal of 1155263623 is 3263625511.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1155263623 is a prime.

It is a super-2 number, since 2×1155263623² = 2669268077254172258, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1155263653) 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, 577631811 + 577631812.

It is an arithmetic number, because the mean of its divisors is an integer number (577631812).

Almost surely, 2^1155263623 is an apocalyptic number.

1155263623 is a deficient number, since it is larger than the sum of its proper divisors (1).

1155263623 is an equidigital number, since it uses as much as digits as its factorization.

1155263623 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 32400, while the sum is 34.

The square root of 1155263623 is about 33989.1692013794. The cubic root of 1155263623 is about 1049.2855678194.

The spelling of 1155263623 in words is "one billion, one hundred fifty-five million, two hundred sixty-three thousand, six hundred twenty-three".