13985161 has 2 divisors, whose sum is σ = 13985162. Its totient is φ = 13985160.

The previous prime is 13985143. The next prime is 13985171. The reversal of 13985161 is 16158931.

13985161 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 11971600 + 2013561 = 3460^2 + 1419^2 .

It is a cyclic number.

It is not a de Polignac number, because 13985161 - 2¹³ = 13976969 is a prime.

It is not a weakly prime, because it can be changed into another prime (13985131) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6992580 + 6992581.

It is an arithmetic number, because the mean of its divisors is an integer number (6992581).

Almost surely, 2^13985161 is an apocalyptic number.

It is an amenable number.

13985161 is a deficient number, since it is larger than the sum of its proper divisors (1).

13985161 is an equidigital number, since it uses as much as digits as its factorization.

13985161 is an evil number, because the sum of its binary digits is even.

The product of its digits is 6480, while the sum is 34.

The square root of 13985161 is about 3739.6739162660. The cubic root of 13985161 is about 240.9290436930.

The spelling of 13985161 in words is "thirteen million, nine hundred eighty-five thousand, one hundred sixty-one".