13656461 has 32 divisors (see below), whose sum is σ = 17891328. Its totient is φ = 10134720.

The previous prime is 13656451. The next prime is 13656473. The reversal of 13656461 is 16465631.

It is a cyclic number.

It is not a de Polignac number, because 13656461 - 2²² = 9462157 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13656431) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 132536 + ... + 132638.

It is an arithmetic number, because the mean of its divisors is an integer number (559104).

Almost surely, 2^13656461 is an apocalyptic number.

It is an amenable number.

13656461 is a deficient number, since it is larger than the sum of its proper divisors (4234867).

13656461 is a wasteful number, since it uses less digits than its factorization.

13656461 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 201.

The product of its digits is 12960, while the sum is 32.

The square root of 13656461 is about 3695.4649233892. The cubic root of 13656461 is about 239.0265021993.

The spelling of 13656461 in words is "thirteen million, six hundred fifty-six thousand, four hundred sixty-one".