13457871 has 24 divisors (see below), whose sum is σ = 23387520. Its totient is φ = 7284816.

The previous prime is 13457849. The next prime is 13457879. The reversal of 13457871 is 17875431.

13457871 is a `hidden beast` number, since 13 + 4 + 578 + 71 = 666.

It is not a de Polignac number, because 13457871 - 2¹⁵ = 13425103 is a prime.

It is a super-2 number, since 2×13457871² = 362228583705282, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13457879) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 4425 + ... + 6818.

It is an arithmetic number, because the mean of its divisors is an integer number (974480).

Almost surely, 2^13457871 is an apocalyptic number.

13457871 is a deficient number, since it is larger than the sum of its proper divisors (9929649).

13457871 is a wasteful number, since it uses less digits than its factorization.

13457871 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11275 (or 11272 counting only the distinct ones).

The product of its digits is 23520, while the sum is 36.

The square root of 13457871 is about 3668.4971037197. The cubic root of 13457871 is about 237.8622122201.

It can be divided in two parts, 1345 and 7871, that added together give a square (9216 = 96²).

The spelling of 13457871 in words is "thirteen million, four hundred fifty-seven thousand, eight hundred seventy-one".