1163166253 has 2 divisors, whose sum is σ = 1163166254. Its totient is φ = 1163166252.

The previous prime is 1163166241. The next prime is 1163166313. The reversal of 1163166253 is 3526613611.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1119103209 + 44063044 = 33453^2 + 6638^2 .

It is an emirp because it is prime and its reverse (3526613611) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1163166253 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1163166223) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 581583126 + 581583127.

It is an arithmetic number, because the mean of its divisors is an integer number (581583127).

Almost surely, 2^1163166253 is an apocalyptic number.

It is an amenable number.

1163166253 is a deficient number, since it is larger than the sum of its proper divisors (1).

1163166253 is an equidigital number, since it uses as much as digits as its factorization.

1163166253 is an evil number, because the sum of its binary digits is even.

The product of its digits is 19440, while the sum is 34.

The square root of 1163166253 is about 34105.2232509919. The cubic root of 1163166253 is about 1051.6726938534.

Adding to 1163166253 its reverse (3526613611), we get a palindrome (4689779864).

The spelling of 1163166253 in words is "one billion, one hundred sixty-three million, one hundred sixty-six thousand, two hundred fifty-three".