1393523 has 2 divisors, whose sum is σ = 1393524. Its totient is φ = 1393522.

The previous prime is 1393493. The next prime is 1393559. The reversal of 1393523 is 3253931.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 1393523 - 2⁶ = 1393459 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 1393492 and 1393501.

It is not a weakly prime, because it can be changed into another prime (1393123) 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, 696761 + 696762.

It is an arithmetic number, because the mean of its divisors is an integer number (696762).

2^1393523 is an apocalyptic number.

1393523 is a deficient number, since it is larger than the sum of its proper divisors (1).

1393523 is an equidigital number, since it uses as much as digits as its factorization.

1393523 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 2430, while the sum is 26.

The square root of 1393523 is about 1180.4757515510. The cubic root of 1393523 is about 111.6961096590.

The spelling of 1393523 in words is "one million, three hundred ninety-three thousand, five hundred twenty-three".