13140526 has 12 divisors (see below), whose sum is σ = 22929048. Its totient is φ = 5631612.

The previous prime is 13140503. The next prime is 13140527. The reversal of 13140526 is 62504131.

It is a super-4 number, since 4×13140526⁴ (a number of 30 digits) contains 4444 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 13140497 and 13140506.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13140527) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 66946 + ... + 67141.

It is an arithmetic number, because the mean of its divisors is an integer number (1910754).

Almost surely, 2^13140526 is an apocalyptic number.

13140526 is a deficient number, since it is larger than the sum of its proper divisors (9788522).

13140526 is a wasteful number, since it uses less digits than its factorization.

13140526 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 134103 (or 134096 counting only the distinct ones).

The product of its (nonzero) digits is 720, while the sum is 22.

The square root of 13140526 is about 3624.9863448019. The cubic root of 13140526 is about 235.9776743220.

Adding to 13140526 its reverse (62504131), we get a palindrome (75644657).

The spelling of 13140526 in words is "thirteen million, one hundred forty thousand, five hundred twenty-six".