13257541 has 4 divisors (see below), whose sum is σ = 14462784. Its totient is φ = 12052300.

The previous prime is 13257533. The next prime is 13257577. The reversal of 13257541 is 14575231.

It is a happy number.

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: 14575231 = 11 ⋅1325021.

It is a cyclic number.

It is not a de Polignac number, because 13257541 - 2³ = 13257533 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13257521) 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, 602605 + ... + 602626.

It is an arithmetic number, because the mean of its divisors is an integer number (3615696).

Almost surely, 2^13257541 is an apocalyptic number.

13257541 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

13257541 is a deficient number, since it is larger than the sum of its proper divisors (1205243).

13257541 is a wasteful number, since it uses less digits than its factorization.

13257541 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1205242.

The product of its digits is 4200, while the sum is 28.

The square root of 13257541 is about 3641.0906333130. The cubic root of 13257541 is about 236.6760575083.

The spelling of 13257541 in words is "thirteen million, two hundred fifty-seven thousand, five hundred forty-one".