1152881775 has 48 divisors (see below), whose sum is σ = 2242490400. Its totient is φ = 578695680.

The previous prime is 1152881759. The next prime is 1152881783. The reversal of 1152881775 is 5771882511.

It is not a de Polignac number, because 1152881775 - 2⁴ = 1152881759 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a self number, because there is not a number n which added to its sum of digits gives 1152881775.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 38760 + ... + 61709.

It is an arithmetic number, because the mean of its divisors is an integer number (46718550).

Almost surely, 2^1152881775 is an apocalyptic number.

1152881775 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

1152881775 is a deficient number, since it is larger than the sum of its proper divisors (1089608625).

1152881775 is a wasteful number, since it uses less digits than its factorization.

1152881775 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 100505 (or 100494 counting only the distinct ones).

The product of its digits is 156800, while the sum is 45.

The square root of 1152881775 is about 33954.1127847570. The cubic root of 1152881775 is about 1048.5639552393.

The spelling of 1152881775 in words is "one billion, one hundred fifty-two million, eight hundred eighty-one thousand, seven hundred seventy-five".