13534641 has 16 divisors (see below), whose sum is σ = 20203200. Its totient is φ = 8954784.

The previous prime is 13534621. The next prime is 13534643. The reversal of 13534641 is 14643531.

13534641 is a `hidden beast` number, since 13 + 5 + 3 + 4 + 641 = 666.

13534641 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 13534641 - 2⁷ = 13534513 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (13534643) 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, 1870 + ... + 5528.

It is an arithmetic number, because the mean of its divisors is an integer number (1262700).

Almost surely, 2^13534641 is an apocalyptic number.

It is an amenable number.

13534641 is a deficient number, since it is larger than the sum of its proper divisors (6668559).

13534641 is a wasteful number, since it uses less digits than its factorization.

13534641 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3805 (or 3799 counting only the distinct ones).

The product of its digits is 4320, while the sum is 27.

The square root of 13534641 is about 3678.9456369998. The cubic root of 13534641 is about 238.3136473979.

The spelling of 13534641 in words is "thirteen million, five hundred thirty-four thousand, six hundred forty-one".