1368631 has 6 divisors (see below), whose sum is σ = 1504496. Its totient is φ = 1244100.

The previous prime is 1368617. The next prime is 1368643.

1368631 is nontrivially palindromic in base 10.

It is not a de Polignac number, because 1368631 - 2⁵ = 1368599 is a prime.

It is a super-2 number, since 2×1368631² = 3746301628322, which contains 22 as substring.

It is a Duffinian number.

It is a nialpdrome in base 11.

It is a self number, because there is not a number n which added to its sum of digits gives 1368631.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1368331) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 5535 + ... + 5776.

2^1368631 is an apocalyptic number.

1368631 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

1368631 is a deficient number, since it is larger than the sum of its proper divisors (135865).

1368631 is a wasteful number, since it uses less digits than its factorization.

1368631 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11333 (or 11322 counting only the distinct ones).

The product of its digits is 2592, while the sum is 28.

The square root of 1368631 is about 1169.8850370870. The cubic root of 1368631 is about 111.0270474899.

It can be divided in two parts, 13 and 68631, that added together give a square (68644 = 262²).

The spelling of 1368631 in words is "one million, three hundred sixty-eight thousand, six hundred thirty-one".