13140837 has 12 divisors (see below), whose sum is σ = 19980480. Its totient is φ = 8299368.

The previous prime is 13140833. The next prime is 13140839. The reversal of 13140837 is 73804131.

It is not a de Polignac number, because 13140837 - 2² = 13140833 is a prime.

It is a plaindrome in base 15.

It is a self number, because there is not a number n which added to its sum of digits gives 13140837.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13140833) 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, 38253 + ... + 38594.

It is an arithmetic number, because the mean of its divisors is an integer number (1665040).

Almost surely, 2^13140837 is an apocalyptic number.

It is an amenable number.

13140837 is a deficient number, since it is larger than the sum of its proper divisors (6839643).

13140837 is a wasteful number, since it uses less digits than its factorization.

13140837 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 76872 (or 76869 counting only the distinct ones).

The product of its (nonzero) digits is 2016, while the sum is 27.

The square root of 13140837 is about 3625.0292412614. The cubic root of 13140837 is about 235.9795359542.

Adding to 13140837 its reverse (73804131), we get a palindrome (86944968).

The spelling of 13140837 in words is "thirteen million, one hundred forty thousand, eight hundred thirty-seven".