13611473 has 2 divisors, whose sum is σ = 13611474. Its totient is φ = 13611472.

The previous prime is 13611461. The next prime is 13611487. The reversal of 13611473 is 37411631.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 11444689 + 2166784 = 3383^2 + 1472^2 .

It is a cyclic number.

It is not a de Polignac number, because 13611473 - 2⁴ = 13611457 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is not a weakly prime, because it can be changed into another prime (13611413) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6805736 + 6805737.

It is an arithmetic number, because the mean of its divisors is an integer number (6805737).

Almost surely, 2^13611473 is an apocalyptic number.

It is an amenable number.

13611473 is a deficient number, since it is larger than the sum of its proper divisors (1).

13611473 is an equidigital number, since it uses as much as digits as its factorization.

13611473 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1512, while the sum is 26.

The square root of 13611473 is about 3689.3729819578. The cubic root of 13611473 is about 238.7637412483.

The spelling of 13611473 in words is "thirteen million, six hundred eleven thousand, four hundred seventy-three".