13025641 has 4 divisors (see below), whose sum is σ = 13071952. Its totient is φ = 12979332.

The previous prime is 13025581. The next prime is 13025647. The reversal of 13025641 is 14652031.

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 an emirpimes, since its reverse is a distinct semiprime: 14652031 = 2801 ⋅5231.

It is a cyclic number.

It is not a de Polignac number, because 13025641 - 2¹⁹ = 12501353 is a prime.

It is a Duffinian number.

13025641 is a modest number, since divided by 25641 gives 13 as remainder.

It is not an unprimeable number, because it can be changed into a prime (13025647) 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, 22731 + ... + 23296.

It is an arithmetic number, because the mean of its divisors is an integer number (3267988).

Almost surely, 2^13025641 is an apocalyptic number.

It is an amenable number.

13025641 is a deficient number, since it is larger than the sum of its proper divisors (46311).

13025641 is an equidigital number, since it uses as much as digits as its factorization.

13025641 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 46310.

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

The square root of 13025641 is about 3609.1052907888. The cubic root of 13025641 is about 235.2879584576.

Adding to 13025641 its reverse (14652031), we get a palindrome (27677672).

The spelling of 13025641 in words is "thirteen million, twenty-five thousand, six hundred forty-one".