13611953 has 2 divisors, whose sum is σ = 13611954. Its totient is φ = 13611952.

The previous prime is 13611919. The next prime is 13611971. The reversal of 13611953 is 35911631.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 13601344 + 10609 = 3688^2 + 103^2 .

It is a cyclic number.

It is not a de Polignac number, because 13611953 - 2¹⁶ = 13546417 is a prime.

It is not a weakly prime, because it can be changed into another prime (13611053) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6805976 + 6805977.

It is an arithmetic number, because the mean of its divisors is an integer number (6805977).

Almost surely, 2^13611953 is an apocalyptic number.

It is an amenable number.

13611953 is a deficient number, since it is larger than the sum of its proper divisors (1).

13611953 is an equidigital number, since it uses as much as digits as its factorization.

13611953 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 2430, while the sum is 29.

The square root of 13611953 is about 3689.4380330885. The cubic root of 13611953 is about 238.7665478329.

The spelling of 13611953 in words is "thirteen million, six hundred eleven thousand, nine hundred fifty-three".