1168631 has 4 divisors (see below), whose sum is σ = 1237392. Its totient is φ = 1099872.

The previous prime is 1168627. The next prime is 1168637. The reversal of 1168631 is 1368611.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 1368611 = 1153 ⋅1187.

It is a cyclic number.

It is not a de Polignac number, because 1168631 - 2² = 1168627 is a prime.

It is a super-2 number, since 2×1168631² = 2731396828322, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 1168631.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1168637) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 34355 + ... + 34388.

It is an arithmetic number, because the mean of its divisors is an integer number (309348).

2^1168631 is an apocalyptic number.

1168631 is a deficient number, since it is larger than the sum of its proper divisors (68761).

1168631 is an equidigital number, since it uses as much as digits as its factorization.

1168631 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 68760.

The product of its digits is 864, while the sum is 26.

The square root of 1168631 is about 1081.0323769434. The cubic root of 1168631 is about 105.3317098594.

The spelling of 1168631 in words is "one million, one hundred sixty-eight thousand, six hundred thirty-one".