1151305263 has 48 divisors (see below), whose sum is σ = 1820332800. Its totient is φ = 698326272.

The previous prime is 1151305261. The next prime is 1151305271. The reversal of 1151305263 is 3625031511.

1151305263 is a `hidden beast` number, since 1 + 1 + 5 + 130 + 526 + 3 = 666.

1151305263 is digitally balanced in base 4, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 1151305263 - 2¹ = 1151305261 is a prime.

It is a super-2 number, since 2×1151305263² = 2651007617222998338, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1151305261) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 676788 + ... + 678486.

It is an arithmetic number, because the mean of its divisors is an integer number (37923600).

Almost surely, 2^1151305263 is an apocalyptic number.

1151305263 is a deficient number, since it is larger than the sum of its proper divisors (669027537).

1151305263 is a wasteful number, since it uses less digits than its factorization.

1151305263 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1868 (or 1865 counting only the distinct ones).

The product of its (nonzero) digits is 2700, while the sum is 27.

The square root of 1151305263 is about 33930.8895108867. The cubic root of 1151305263 is about 1048.0857831297.

Adding to 1151305263 its reverse (3625031511), we get a palindrome (4776336774).

The spelling of 1151305263 in words is "one billion, one hundred fifty-one million, three hundred five thousand, two hundred sixty-three".