1368531 has 12 divisors (see below), whose sum is σ = 2004808. Its totient is φ = 899424.

The previous prime is 1368529. The next prime is 1368547. The reversal of 1368531 is 1358631.

It is not a de Polignac number, because 1368531 - 2¹ = 1368529 is a prime.

It is a super-2 number, since 2×1368531² = 3745754195922, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1368495 and 1368504.

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 11 ways as a sum of consecutive naturals, for example, 385 + ... + 1698.

2^1368531 is an apocalyptic number.

1368531 is a deficient number, since it is larger than the sum of its proper divisors (636277).

1368531 is a wasteful number, since it uses less digits than its factorization.

1368531 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2162 (or 2159 counting only the distinct ones).

The product of its digits is 2160, while the sum is 27.

The square root of 1368531 is about 1169.8422970640. The cubic root of 1368531 is about 111.0243433339.

The spelling of 1368531 in words is "one million, three hundred sixty-eight thousand, five hundred thirty-one".