13432138 has 16 divisors (see below), whose sum is σ = 21228480. Its totient is φ = 6361696.

The previous prime is 13432129. The next prime is 13432151. The reversal of 13432138 is 83123431.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3558 + ... + 6286.

It is an arithmetic number, because the mean of its divisors is an integer number (1326780).

Almost surely, 2^13432138 is an apocalyptic number.

13432138 is a deficient number, since it is larger than the sum of its proper divisors (7796342).

13432138 is a wasteful number, since it uses less digits than its factorization.

13432138 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2861.

The product of its digits is 1728, while the sum is 25.

The square root of 13432138 is about 3664.9881309494. The cubic root of 13432138 is about 237.7105088353.

Adding to 13432138 its reverse (83123431), we get a palindrome (96555569).

It can be divided in two parts, 1343 and 2138, that added together give a square (3481 = 59²).

The spelling of 13432138 in words is "thirteen million, four hundred thirty-two thousand, one hundred thirty-eight".