1151245263 has 16 divisors (see below), whose sum is σ = 1757159936. Its totient is φ = 656773920.

The previous prime is 1151245261. The next prime is 1151245297. The reversal of 1151245263 is 3625421511.

It is not a de Polignac number, because 1151245263 - 2¹ = 1151245261 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 1151245263.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1151245261) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 31843 + ... + 57588.

It is an arithmetic number, because the mean of its divisors is an integer number (109822496).

Almost surely, 2^1151245263 is an apocalyptic number.

1151245263 is a deficient number, since it is larger than the sum of its proper divisors (605914673).

1151245263 is an equidigital number, since it uses as much as digits as its factorization.

1151245263 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 90054.

The product of its digits is 7200, while the sum is 30.

The square root of 1151245263 is about 33930.0053492480. The cubic root of 1151245263 is about 1048.0675758996.

Adding to 1151245263 its reverse (3625421511), we get a palindrome (4776666774).

The spelling of 1151245263 in words is "one billion, one hundred fifty-one million, two hundred forty-five thousand, two hundred sixty-three".