1168641 has 8 divisors (see below), whose sum is σ = 1731360. Its totient is φ = 779076.

The previous prime is 1168639. The next prime is 1168693. The reversal of 1168641 is 1468611.

1168641 is a `hidden beast` number, since 1 + 16 + 8 + 641 = 666.

It is not a de Polignac number, because 1168641 - 2¹ = 1168639 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27), and also a Moran number because the ratio is a prime number: 43283 = 1168641 / (1 + 1 + 6 + 8 + 6 + 4 + 1).

It is an Ulam number.

It is not an unprimeable number, because it can be changed into a prime (1168621) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 21615 + ... + 21668.

It is an arithmetic number, because the mean of its divisors is an integer number (216420).

2^1168641 is an apocalyptic number.

It is an amenable number.

1168641 is a deficient number, since it is larger than the sum of its proper divisors (562719).

1168641 is an equidigital number, since it uses as much as digits as its factorization.

1168641 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 43292 (or 43286 counting only the distinct ones).

The product of its digits is 1152, while the sum is 27.

The square root of 1168641 is about 1081.0370021419. The cubic root of 1168641 is about 105.3320103005.

The spelling of 1168641 in words is "one million, one hundred sixty-eight thousand, six hundred forty-one".