13671975 has 24 divisors (see below), whose sum is σ = 22710352. Its totient is φ = 7257600.

The previous prime is 13671967. The next prime is 13671989. The reversal of 13671975 is 57917631.

13671975 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 13671975 - 2³ = 13671967 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 31359 + ... + 31791.

Almost surely, 2^13671975 is an apocalyptic number.

13671975 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

13671975 is a deficient number, since it is larger than the sum of its proper divisors (9038377).

13671975 is a wasteful number, since it uses less digits than its factorization.

13671975 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 867 (or 862 counting only the distinct ones).

The product of its digits is 39690, while the sum is 39.

The square root of 13671975 is about 3697.5633868806. The cubic root of 13671975 is about 239.1169808337.

The spelling of 13671975 in words is "thirteen million, six hundred seventy-one thousand, nine hundred seventy-five".