1356503 has 2 divisors, whose sum is σ = 1356504. Its totient is φ = 1356502.

The previous prime is 1356499. The next prime is 1356539. The reversal of 1356503 is 3056531.

It is a weak prime.

It is an emirp because it is prime and its reverse (3056531) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1356503 - 2² = 1356499 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1355503) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 678251 + 678252.

It is an arithmetic number, because the mean of its divisors is an integer number (678252).

2^1356503 is an apocalyptic number.

1356503 is a deficient number, since it is larger than the sum of its proper divisors (1).

1356503 is an equidigital number, since it uses as much as digits as its factorization.

1356503 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1350, while the sum is 23.

The square root of 1356503 is about 1164.6900875340. The cubic root of 1356503 is about 110.6981219354.

The spelling of 1356503 in words is "one million, three hundred fifty-six thousand, five hundred three".