1413865 has 4 divisors (see below), whose sum is σ = 1696644. Its totient is φ = 1131088.

The previous prime is 1413859. The next prime is 1413877. The reversal of 1413865 is 5683141.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 522729 + 891136 = 723^2 + 944^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1413865 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, 141382 + ... + 141391.

It is an arithmetic number, because the mean of its divisors is an integer number (424161).

2^1413865 is an apocalyptic number.

It is an amenable number.

1413865 is a deficient number, since it is larger than the sum of its proper divisors (282779).

1413865 is an equidigital number, since it uses as much as digits as its factorization.

1413865 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 282778.

The product of its digits is 2880, while the sum is 28.

The square root of 1413865 is about 1189.0605535464. The cubic root of 1413865 is about 112.2369822686.

It can be divided in two parts, 1413 and 865, that added together give a triangular number (2278 = T₆₇).

The spelling of 1413865 in words is "one million, four hundred thirteen thousand, eight hundred sixty-five".