1338553 has 8 divisors (see below), whose sum is σ = 1401480. Its totient is φ = 1276800.

The previous prime is 1338551. The next prime is 1338559. The reversal of 1338553 is 3558331.

It can be written as a sum of positive squares in 4 ways, for example, as 824464 + 514089 = 908^2 + 717^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 1338553 - 2¹ = 1338551 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1338551) 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 7 ways as a sum of consecutive naturals, for example, 2701 + ... + 3157.

It is an arithmetic number, because the mean of its divisors is an integer number (175185).

2^1338553 is an apocalyptic number.

It is an amenable number.

1338553 is a deficient number, since it is larger than the sum of its proper divisors (62927).

1338553 is a wasteful number, since it uses less digits than its factorization.

1338553 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 587.

The product of its digits is 5400, while the sum is 28.

The square root of 1338553 is about 1156.9585126529. The cubic root of 1338553 is about 110.2076792815.

It can be divided in two parts, 1338 and 553, that added together give a triangular number (1891 = T₆₁).

The spelling of 1338553 in words is "one million, three hundred thirty-eight thousand, five hundred fifty-three".