1456591 has 4 divisors (see below), whose sum is σ = 1470312. Its totient is φ = 1442872.

The previous prime is 1456561. The next prime is 1456603. The reversal of 1456591 is 1956541.

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

It is a cyclic number.

It is not a de Polignac number, because 1456591 - 2¹⁹ = 932303 is a prime.

It is an Ulam number.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1456501) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6700 + ... + 6913.

It is an arithmetic number, because the mean of its divisors is an integer number (367578).

2^1456591 is an apocalyptic number.

1456591 is a deficient number, since it is larger than the sum of its proper divisors (13721).

1456591 is a wasteful number, since it uses less digits than its factorization.

1456591 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13720.

The product of its digits is 5400, while the sum is 31.

The square root of 1456591 is about 1206.8931187143. The cubic root of 1456591 is about 113.3563553769.

The spelling of 1456591 in words is "one million, four hundred fifty-six thousand, five hundred ninety-one".