1456691 has 2 divisors, whose sum is σ = 1456692. Its totient is φ = 1456690.

The previous prime is 1456687. The next prime is 1456703. The reversal of 1456691 is 1966541.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 1456691 - 2² = 1456687 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (1456391) 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, 728345 + 728346.

It is an arithmetic number, because the mean of its divisors is an integer number (728346).

2^1456691 is an apocalyptic number.

1456691 is a deficient number, since it is larger than the sum of its proper divisors (1).

1456691 is an equidigital number, since it uses as much as digits as its factorization.

1456691 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 6480, while the sum is 32.

The square root of 1456691 is about 1206.9345466926. The cubic root of 1456691 is about 113.3589494192.

The spelling of 1456691 in words is "one million, four hundred fifty-six thousand, six hundred ninety-one".