13434138 has 24 divisors (see below), whose sum is σ = 29308500. Its totient is φ = 4447104.

The previous prime is 13434137. The next prime is 13434149. The reversal of 13434138 is 83143431.

It can be written as a sum of positive squares in 2 ways, for example, as 12723489 + 710649 = 3567^2 + 843^2 .

It is not an unprimeable number, because it can be changed into a prime (13434133) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 178 + ... + 5186.

Almost surely, 2^13434138 is an apocalyptic number.

13434138 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

13434138 is an abundant number, since it is smaller than the sum of its proper divisors (15874362).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

13434138 is a wasteful number, since it uses less digits than its factorization.

13434138 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5166 (or 5163 counting only the distinct ones).

The product of its digits is 3456, while the sum is 27.

The square root of 13434138 is about 3665.2609729731. The cubic root of 13434138 is about 237.7223063472.

Adding to 13434138 its reverse (83143431), we get a palindrome (96577569).

The spelling of 13434138 in words is "thirteen million, four hundred thirty-four thousand, one hundred thirty-eight".