13126457 has 6 divisors (see below), whose sum is σ = 13381662. Its totient is φ = 12876032.

The previous prime is 13126447. The next prime is 13126469. The reversal of 13126457 is 75462131.

It can be written as a sum of positive squares in 3 ways, for example, as 8202496 + 4923961 = 2864^2 + 2219^2 .

It is not a de Polignac number, because 13126457 - 2¹⁴ = 13110073 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (13126417) 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 5 ways as a sum of consecutive naturals, for example, 473 + ... + 5145.

It is an arithmetic number, because the mean of its divisors is an integer number (2230277).

Almost surely, 2^13126457 is an apocalyptic number.

It is an amenable number.

13126457 is a deficient number, since it is larger than the sum of its proper divisors (255205).

13126457 is an frugal number, since it uses more digits than its factorization.

13126457 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4779 (or 4726 counting only the distinct ones).

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

The square root of 13126457 is about 3623.0452660711. The cubic root of 13126457 is about 235.8934271756.

Adding to 13126457 its reverse (75462131), we get a palindrome (88588588).

The spelling of 13126457 in words is "thirteen million, one hundred twenty-six thousand, four hundred fifty-seven".