13149471 has 16 divisors (see below), whose sum is σ = 17948160. Its totient is φ = 8561280.

The previous prime is 13149457. The next prime is 13149473. The reversal of 13149471 is 17494131.

13149471 is digitally balanced in base 2 and base 4, because in such bases it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 13149471 - 2⁶ = 13149407 is a prime.

It is a super-3 number, since 3×13149471³ (a number of 22 digits) contains 333 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13149473) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 26536 + ... + 27026.

It is an arithmetic number, because the mean of its divisors is an integer number (1121760).

Almost surely, 2^13149471 is an apocalyptic number.

13149471 is a deficient number, since it is larger than the sum of its proper divisors (4798689).

13149471 is a wasteful number, since it uses less digits than its factorization.

13149471 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 686.

The product of its digits is 3024, while the sum is 30.

The square root of 13149471 is about 3626.2199326571. The cubic root of 13149471 is about 236.0312069716.

The spelling of 13149471 in words is "thirteen million, one hundred forty-nine thousand, four hundred seventy-one".