1145332863 has 48 divisors (see below), whose sum is σ = 1832263680. Its totient is φ = 686169792.

The previous prime is 1145332849. The next prime is 1145332871. The reversal of 1145332863 is 3682335411.

1145332863 is a `hidden beast` number, since 114 + 533 + 2 + 8 + 6 + 3 = 666.

It is not a de Polignac number, because 1145332863 - 2⁴ = 1145332847 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1145332063) 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, 498345 + ... + 500637.

It is an arithmetic number, because the mean of its divisors is an integer number (38172160).

Almost surely, 2^1145332863 is an apocalyptic number.

1145332863 is a deficient number, since it is larger than the sum of its proper divisors (686930817).

1145332863 is a wasteful number, since it uses less digits than its factorization.

1145332863 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2468 (or 2465 counting only the distinct ones).

The product of its digits is 51840, while the sum is 36.

The square root of 1145332863 is about 33842.7667751914. The cubic root of 1145332863 is about 1046.2703240700.

The spelling of 1145332863 in words is "one billion, one hundred forty-five million, three hundred thirty-two thousand, eight hundred sixty-three".