1165551053 has 2 divisors, whose sum is σ = 1165551054. Its totient is φ = 1165551052.

The previous prime is 1165551017. The next prime is 1165551071. The reversal of 1165551053 is 3501555611.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 904986889 + 260564164 = 30083^2 + 16142^2 .

It is a cyclic number.

It is not a de Polignac number, because 1165551053 - 2⁸ = 1165550797 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1165551083) 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, 582775526 + 582775527.

It is an arithmetic number, because the mean of its divisors is an integer number (582775527).

Almost surely, 2^1165551053 is an apocalyptic number.

It is an amenable number.

1165551053 is a deficient number, since it is larger than the sum of its proper divisors (1).

1165551053 is an equidigital number, since it uses as much as digits as its factorization.

1165551053 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 11250, while the sum is 32.

The square root of 1165551053 is about 34140.1677353817. The cubic root of 1165551053 is about 1052.3909394012.

The spelling of 1165551053 in words is "one billion, one hundred sixty-five million, five hundred fifty-one thousand, fifty-three".