13057471 has 6 divisors (see below), whose sum is σ = 15189360. Its totient is φ = 11192076.

The previous prime is 13057463. The next prime is 13057481. The reversal of 13057471 is 17475031.

It is not a de Polignac number, because 13057471 - 2³ = 13057463 is a prime.

It is a super-3 number, since 3×13057471³ (a number of 22 digits) contains 333 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13057481) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 133191 + ... + 133288.

It is an arithmetic number, because the mean of its divisors is an integer number (2531560).

Almost surely, 2^13057471 is an apocalyptic number.

13057471 is a deficient number, since it is larger than the sum of its proper divisors (2131889).

13057471 is an equidigital number, since it uses as much as digits as its factorization.

13057471 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 266493 (or 266486 counting only the distinct ones).

The product of its (nonzero) digits is 2940, while the sum is 28.

The square root of 13057471 is about 3613.5122803168. The cubic root of 13057471 is about 235.4794557172.

The spelling of 13057471 in words is "thirteen million, fifty-seven thousand, four hundred seventy-one".