13007138 has 8 divisors (see below), whose sum is σ = 20183580. Its totient is φ = 6279280.

The previous prime is 13007123. The next prime is 13007143. The reversal of 13007138 is 83170031.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 11607649 + 1399489 = 3407^2 + 1183^2 .

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

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 in 3 ways as a sum of consecutive naturals, for example, 112073 + ... + 112188.

Almost surely, 2^13007138 is an apocalyptic number.

13007138 is a deficient number, since it is larger than the sum of its proper divisors (7176442).

13007138 is a wasteful number, since it uses less digits than its factorization.

13007138 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 224292.

The product of its (nonzero) digits is 504, while the sum is 23.

The square root of 13007138 is about 3606.5410021238. The cubic root of 13007138 is about 235.1764963517.

Adding to 13007138 its reverse (83170031), we get a palindrome (96177169).

The spelling of 13007138 in words is "thirteen million, seven thousand, one hundred thirty-eight".