1155056233 has 2 divisors, whose sum is σ = 1155056234. Its totient is φ = 1155056232.

The previous prime is 1155056197. The next prime is 1155056263. The reversal of 1155056233 is 3326505511.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 909444649 + 245611584 = 30157^2 + 15672^2 .

It is a cyclic number.

It is not a de Polignac number, because 1155056233 - 2²¹ = 1152959081 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 1155056195 and 1155056204.

It is not a weakly prime, because it can be changed into another prime (1155056263) 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 as a sum of consecutive naturals, namely, 577528116 + 577528117.

It is an arithmetic number, because the mean of its divisors is an integer number (577528117).

Almost surely, 2^1155056233 is an apocalyptic number.

It is an amenable number.

1155056233 is a deficient number, since it is larger than the sum of its proper divisors (1).

1155056233 is an equidigital number, since it uses as much as digits as its factorization.

1155056233 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 13500, while the sum is 31.

The square root of 1155056233 is about 33986.1182396578. The cubic root of 1155056233 is about 1049.2227756992. Note that the first 3 decimals are identical.

The spelling of 1155056233 in words is "one billion, one hundred fifty-five million, fifty-six thousand, two hundred thirty-three".