1153671263 has 2 divisors, whose sum is σ = 1153671264. Its totient is φ = 1153671262.

The previous prime is 1153671229. The next prime is 1153671319. The reversal of 1153671263 is 3621763511.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 1153671263 - 2¹⁸ = 1153409119 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1153671163) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 576835631 + 576835632.

It is an arithmetic number, because the mean of its divisors is an integer number (576835632).

Almost surely, 2^1153671263 is an apocalyptic number.

1153671263 is a deficient number, since it is larger than the sum of its proper divisors (1).

1153671263 is an equidigital number, since it uses as much as digits as its factorization.

1153671263 is an evil number, because the sum of its binary digits is even.

The product of its digits is 22680, while the sum is 35.

The square root of 1153671263 is about 33965.7366032300. The cubic root of 1153671263 is about 1048.8032511745.

The spelling of 1153671263 in words is "one billion, one hundred fifty-three million, six hundred seventy-one thousand, two hundred sixty-three".