1364905 has 4 divisors (see below), whose sum is σ = 1637892. Its totient is φ = 1091920.

The previous prime is 1364897. The next prime is 1364911. The reversal of 1364905 is 5094631.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 5094631 = 79 ⋅64489.

It can be written as a sum of positive squares in 2 ways, for example, as 767376 + 597529 = 876^2 + 773^2 .

It is not a de Polignac number, because 1364905 - 2³ = 1364897 is a prime.

It is a Duffinian number.

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 136486 + ... + 136495.

It is an arithmetic number, because the mean of its divisors is an integer number (409473).

2^1364905 is an apocalyptic number.

It is an amenable number.

1364905 is a deficient number, since it is larger than the sum of its proper divisors (272987).

1364905 is an equidigital number, since it uses as much as digits as its factorization.

1364905 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 272986.

The product of its (nonzero) digits is 3240, while the sum is 28.

The square root of 1364905 is about 1168.2914876006. The cubic root of 1364905 is about 110.9262015208.

It can be divided in two parts, 136 and 4905, that added together give a square (5041 = 71²).

The spelling of 1364905 in words is "one million, three hundred sixty-four thousand, nine hundred five".