1146532881 has 16 divisors (see below), whose sum is σ = 1673295680. Its totient is φ = 693990720.

The previous prime is 1146532843. The next prime is 1146532901. The reversal of 1146532881 is 1882356411.

It is not a de Polignac number, because 1146532881 - 2⁷ = 1146532753 is a prime.

It is a super-2 number, since 2×1146532881² = 2629075294428320322, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (39).

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (1146532831) 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, 238591 + ... + 243348.

It is an arithmetic number, because the mean of its divisors is an integer number (104580980).

Almost surely, 2^1146532881 is an apocalyptic number.

It is an amenable number.

1146532881 is a deficient number, since it is larger than the sum of its proper divisors (526762799).

1146532881 is a wasteful number, since it uses less digits than its factorization.

1146532881 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 482016.

The product of its digits is 46080, while the sum is 39.

The square root of 1146532881 is about 33860.4914465222. The cubic root of 1146532881 is about 1046.6356050640.

The spelling of 1146532881 in words is "one billion, one hundred forty-six million, five hundred thirty-two thousand, eight hundred eighty-one".