13261457 has 8 divisors (see below), whose sum is σ = 14526432. Its totient is φ = 12006400.

The previous prime is 13261453. The next prime is 13261481. The reversal of 13261457 is 75416231.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 13261457 - 2² = 13261453 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (13261453) 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 7 ways as a sum of consecutive naturals, for example, 482 + ... + 5172.

It is an arithmetic number, because the mean of its divisors is an integer number (1815804).

Almost surely, 2^13261457 is an apocalyptic number.

It is an amenable number.

13261457 is a deficient number, since it is larger than the sum of its proper divisors (1264975).

13261457 is a wasteful number, since it uses less digits than its factorization.

13261457 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4959.

The product of its digits is 5040, while the sum is 29.

The square root of 13261457 is about 3641.6283445733. The cubic root of 13261457 is about 236.6993582647.

Adding to 13261457 its reverse (75416231), we get a palindrome (88677688).

The spelling of 13261457 in words is "thirteen million, two hundred sixty-one thousand, four hundred fifty-seven".