1338814523 has 4 divisors (see below), whose sum is σ = 1340626920. Its totient is φ = 1337002128.

The previous prime is 1338814511. The next prime is 1338814541. The reversal of 1338814523 is 3254188331.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 3254188331 = 17 ⋅191422843.

It is a cyclic number.

It is not a de Polignac number, because 1338814523 - 2⁴ = 1338814507 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1338810523) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 905090 + ... + 906567.

It is an arithmetic number, because the mean of its divisors is an integer number (335156730).

Almost surely, 2^1338814523 is an apocalyptic number.

1338814523 is a deficient number, since it is larger than the sum of its proper divisors (1812397).

1338814523 is an equidigital number, since it uses as much as digits as its factorization.

1338814523 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1812396.

The product of its digits is 69120, while the sum is 38.

The square root of 1338814523 is about 36589.8144706966. The cubic root of 1338814523 is about 1102.1485617722.

The spelling of 1338814523 in words is "one billion, three hundred thirty-eight million, eight hundred fourteen thousand, five hundred twenty-three".