1369553 has 6 divisors (see below), whose sum is σ = 1393974. Its totient is φ = 1345536.

The previous prime is 1369541. The next prime is 1369559. The reversal of 1369553 is 3559631.

It can be written as a sum of positive squares in 3 ways, for example, as 692224 + 677329 = 832^2 + 823^2 .

It is not a de Polignac number, because 1369553 - 2⁸ = 1369297 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 (1369559) 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 in 5 ways as a sum of consecutive naturals, for example, 5201 + ... + 5457.

It is an arithmetic number, because the mean of its divisors is an integer number (232329).

2^1369553 is an apocalyptic number.

It is an amenable number.

1369553 is a deficient number, since it is larger than the sum of its proper divisors (24421).

1369553 is an frugal number, since it uses more digits than its factorization.

1369553 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 403 (or 330 counting only the distinct ones).

The product of its digits is 12150, while the sum is 32.

The square root of 1369553 is about 1170.2790265573. The cubic root of 1369553 is about 111.0519736045.

The spelling of 1369553 in words is "one million, three hundred sixty-nine thousand, five hundred fifty-three".