13137387 has 8 divisors (see below), whose sum is σ = 17803920. Its totient is φ = 8614560.

The previous prime is 13137367. The next prime is 13137401. The reversal of 13137387 is 78373131.

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

It is not a de Polignac number, because 13137387 - 2¹² = 13133291 is a prime.

It is not an unprimeable number, because it can be changed into a prime (13137337) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 35712 + ... + 36077.

It is an arithmetic number, because the mean of its divisors is an integer number (2225490).

Almost surely, 2^13137387 is an apocalyptic number.

13137387 is a deficient number, since it is larger than the sum of its proper divisors (4666533).

13137387 is an equidigital number, since it uses as much as digits as its factorization.

13137387 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 71853.

The product of its digits is 10584, while the sum is 33.

The square root of 13137387 is about 3624.5533517938. The cubic root of 13137387 is about 235.9588827630.

The spelling of 13137387 in words is "thirteen million, one hundred thirty-seven thousand, three hundred eighty-seven".