1178881 has 4 divisors (see below), whose sum is σ = 1286064. Its totient is φ = 1071700.

The previous prime is 1178851. The next prime is 1178887. The reversal of 1178881 is 1888711.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 1178881 - 2⁷ = 1178753 is a prime.

It is a super-3 number, since 3×1178881³ = 4915086433346315523, which contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a pancake number, because a pancake can be divided into 1178881 parts by 1535 straight cuts.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1178887) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 53575 + ... + 53596.

It is an arithmetic number, because the mean of its divisors is an integer number (321516).

2^1178881 is an apocalyptic number.

1178881 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

1178881 is a deficient number, since it is larger than the sum of its proper divisors (107183).

1178881 is a wasteful number, since it uses less digits than its factorization.

1178881 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 107182.

The product of its digits is 3584, while the sum is 34.

The square root of 1178881 is about 1085.7628654545. The cubic root of 1178881 is about 105.6387668061.

It can be divided in two parts, 117 and 8881, that added together give a palindrome (8998).

The spelling of 1178881 in words is "one million, one hundred seventy-eight thousand, eight hundred eighty-one".