13138322 has 4 divisors (see below), whose sum is σ = 19707486. Its totient is φ = 6569160.

The previous prime is 13138309. The next prime is 13138339. The reversal of 13138322 is 22383131.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 22383131 = 823 ⋅27197.

It can be written as a sum of positive squares in only one way, i.e., 11771761 + 1366561 = 3431^2 + 1169^2 .

It is an unprimeable number.

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, 3284579 + ... + 3284582.

Almost surely, 2^13138322 is an apocalyptic number.

13138322 is a deficient number, since it is larger than the sum of its proper divisors (6569164).

13138322 is an equidigital number, since it uses as much as digits as its factorization.

13138322 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6569163.

The product of its digits is 864, while the sum is 23.

The square root of 13138322 is about 3624.6823309085. The cubic root of 13138322 is about 235.9644804343.

The spelling of 13138322 in words is "thirteen million, one hundred thirty-eight thousand, three hundred twenty-two".