1356473 has 2 divisors, whose sum is σ = 1356474. Its totient is φ = 1356472.

The previous prime is 1356463. The next prime is 1356491. The reversal of 1356473 is 3746531.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1006009 + 350464 = 1003^2 + 592^2 .

It is a cyclic number.

It is not a de Polignac number, because 1356473 - 2⁶ = 1356409 is a prime.

It is a Sophie Germain prime.

It is a d-powerful number, because it can be written as 1 + 3⁵ + 5 + 6³ + 4⁵ + 7⁷ + 3¹² .

It is a Curzon number.

It is not a weakly prime, because it can be changed into another prime (1356463) 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, 678236 + 678237.

It is an arithmetic number, because the mean of its divisors is an integer number (678237).

2^1356473 is an apocalyptic number.

It is an amenable number.

1356473 is a deficient number, since it is larger than the sum of its proper divisors (1).

1356473 is an equidigital number, since it uses as much as digits as its factorization.

1356473 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 7560, while the sum is 29.

The square root of 1356473 is about 1164.6772085003. The cubic root of 1356473 is about 110.6973058743.

The spelling of 1356473 in words is "one million, three hundred fifty-six thousand, four hundred seventy-three".