1456813 has 4 divisors (see below), whose sum is σ = 1459228. Its totient is φ = 1454400.

The previous prime is 1456799. The next prime is 1456823. The reversal of 1456813 is 3186541.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length, and also an emirpimes, since its reverse is a distinct semiprime: 3186541 = 1021 ⋅3121.

It can be written as a sum of positive squares in 2 ways, for example, as 21609 + 1435204 = 147^2 + 1198^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1456813 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1456823) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 595 + ... + 1807.

It is an arithmetic number, because the mean of its divisors is an integer number (364807).

2^1456813 is an apocalyptic number.

It is an amenable number.

1456813 is a deficient number, since it is larger than the sum of its proper divisors (2415).

1456813 is a wasteful number, since it uses less digits than its factorization.

1456813 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2414.

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

The square root of 1456813 is about 1206.9850869004. The cubic root of 1456813 is about 113.3621139901.

The spelling of 1456813 in words is "one million, four hundred fifty-six thousand, eight hundred thirteen".