13461691 has 4 divisors (see below), whose sum is σ = 13564584. Its totient is φ = 13358800.

The previous prime is 13461689. The next prime is 13461697. The reversal of 13461691 is 19616431.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 19616431 = 179 ⋅109589.

It is a cyclic number.

It is not a de Polignac number, because 13461691 - 2¹ = 13461689 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (13461697) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 51250 + ... + 51511.

It is an arithmetic number, because the mean of its divisors is an integer number (3391146).

Almost surely, 2^13461691 is an apocalyptic number.

13461691 is a deficient number, since it is larger than the sum of its proper divisors (102893).

13461691 is a wasteful number, since it uses less digits than its factorization.

13461691 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 102892.

The product of its digits is 3888, while the sum is 31.

The square root of 13461691 is about 3669.0177159561. The cubic root of 13461691 is about 237.8847157224.

The spelling of 13461691 in words is "thirteen million, four hundred sixty-one thousand, six hundred ninety-one".