1151236263 has 8 divisors (see below), whose sum is σ = 1535256576. Its totient is φ = 767353400.

The previous prime is 1151236259. The next prime is 1151236297. The reversal of 1151236263 is 3626321511.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 1151236263 - 2² = 1151236259 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 1151236263.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1151236213) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 12903 + ... + 49688.

It is an arithmetic number, because the mean of its divisors is an integer number (191907072).

Almost surely, 2^1151236263 is an apocalyptic number.

1151236263 is a deficient number, since it is larger than the sum of its proper divisors (384020313).

1151236263 is an equidigital number, since it uses as much as digits as its factorization.

1151236263 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 68725.

The product of its digits is 6480, while the sum is 30.

The square root of 1151236263 is about 33929.8727230150. The cubic root of 1151236263 is about 1048.0648447606.

Adding to 1151236263 its reverse (3626321511), we get a palindrome (4777557774).

It can be divided in two parts, 115 and 1236263, that added together give a triangular number (1236378 = T₁₅₇₂).

The spelling of 1151236263 in words is "one billion, one hundred fifty-one million, two hundred thirty-six thousand, two hundred sixty-three".