1153131269 has 2 divisors, whose sum is σ = 1153131270. Its totient is φ = 1153131268.

The previous prime is 1153131181. The next prime is 1153131311. The reversal of 1153131269 is 9621313511.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1136566369 + 16564900 = 33713^2 + 4070^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1153131269 is a prime.

It is a super-2 number, since 2×1153131269² = 2659423447091100722, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1153131169) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 576565634 + 576565635.

It is an arithmetic number, because the mean of its divisors is an integer number (576565635).

Almost surely, 2^1153131269 is an apocalyptic number.

It is an amenable number.

1153131269 is a deficient number, since it is larger than the sum of its proper divisors (1).

1153131269 is an equidigital number, since it uses as much as digits as its factorization.

1153131269 is an evil number, because the sum of its binary digits is even.

The product of its digits is 4860, while the sum is 32.

The square root of 1153131269 is about 33957.7865739215. The cubic root of 1153131269 is about 1048.6395893450.

The spelling of 1153131269 in words is "one billion, one hundred fifty-three million, one hundred thirty-one thousand, two hundred sixty-nine".