13129541 has 4 divisors (see below), whose sum is σ = 13140000. Its totient is φ = 13119084.

The previous prime is 13129537. The next prime is 13129549. The reversal of 13129541 is 14592131.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also a brilliant number, because the two primes have the same length, and also an emirpimes, since its reverse is a distinct semiprime: 14592131 = 67 ⋅217793.

It is a cyclic number.

It is not a de Polignac number, because 13129541 - 2² = 13129537 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 13129541.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13129549) by changing a digit.

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, 3041 + ... + 5958.

It is an arithmetic number, because the mean of its divisors is an integer number (3285000).

Almost surely, 2^13129541 is an apocalyptic number.

It is an amenable number.

13129541 is a deficient number, since it is larger than the sum of its proper divisors (10459).

13129541 is an equidigital number, since it uses as much as digits as its factorization.

13129541 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10458.

The product of its digits is 1080, while the sum is 26.

The square root of 13129541 is about 3623.4708498896. The cubic root of 13129541 is about 235.9118997500.

The spelling of 13129541 in words is "thirteen million, one hundred twenty-nine thousand, five hundred forty-one".