1369573 has 4 divisors (see below), whose sum is σ = 1395468. Its totient is φ = 1343680.

The previous prime is 1369561. The next prime is 1369597. The reversal of 1369573 is 3759631.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 3759631 = 1877 ⋅2003.

It can be written as a sum of positive squares in 2 ways, for example, as 675684 + 693889 = 822^2 + 833^2 .

It is a cyclic number.

It is not a de Polignac number, because 1369573 - 2⁵ = 1369541 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1369373) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 12868 + ... + 12973.

It is an arithmetic number, because the mean of its divisors is an integer number (348867).

2^1369573 is an apocalyptic number.

It is an amenable number.

1369573 is a deficient number, since it is larger than the sum of its proper divisors (25895).

1369573 is an equidigital number, since it uses as much as digits as its factorization.

1369573 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25894.

The product of its digits is 17010, while the sum is 34.

The square root of 1369573 is about 1170.2875714969. The cubic root of 1369573 is about 111.0525141771.

It can be divided in two parts, 136957 and 3, that multiplied together give a triangular number (410871 = T₉₀₆).

The spelling of 1369573 in words is "one million, three hundred sixty-nine thousand, five hundred seventy-three".