1156331053 has 2 divisors, whose sum is σ = 1156331054. Its totient is φ = 1156331052.

The previous prime is 1156331047. The next prime is 1156331069. The reversal of 1156331053 is 3501336511.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1149345604 + 6985449 = 33902^2 + 2643^2 .

It is a cyclic number.

It is not a de Polignac number, because 1156331053 - 2²⁵ = 1122776621 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1156331353) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 578165526 + 578165527.

It is an arithmetic number, because the mean of its divisors is an integer number (578165527).

Almost surely, 2^1156331053 is an apocalyptic number.

It is an amenable number.

1156331053 is a deficient number, since it is larger than the sum of its proper divisors (1).

1156331053 is an equidigital number, since it uses as much as digits as its factorization.

1156331053 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 4050, while the sum is 28.

The square root of 1156331053 is about 34004.8680779679. The cubic root of 1156331053 is about 1049.6086381233.

Adding to 1156331053 its reverse (3501336511), we get a palindrome (4657667564).

The spelling of 1156331053 in words is "one billion, one hundred fifty-six million, three hundred thirty-one thousand, fifty-three".