1365667 has 2 divisors, whose sum is σ = 1365668. Its totient is φ = 1365666.

The previous prime is 1365659. The next prime is 1365703. The reversal of 1365667 is 7665631.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 1365667 - 2³ = 1365659 is a prime.

It is a plaindrome in base 14.

It is not a weakly prime, because it can be changed into another prime (1365167) 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 as a sum of consecutive naturals, namely, 682833 + 682834.

It is an arithmetic number, because the mean of its divisors is an integer number (682834).

2^1365667 is an apocalyptic number.

1365667 is a deficient number, since it is larger than the sum of its proper divisors (1).

1365667 is an equidigital number, since it uses as much as digits as its factorization.

1365667 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 22680, while the sum is 34.

The square root of 1365667 is about 1168.6175593410. The cubic root of 1365667 is about 110.9468403298.

The spelling of 1365667 in words is "one million, three hundred sixty-five thousand, six hundred sixty-seven".