13949161 has 2 divisors, whose sum is σ = 13949162. Its totient is φ = 13949160.

The previous prime is 13949153. The next prime is 13949167. The reversal of 13949161 is 16194931.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 11861136 + 2088025 = 3444^2 + 1445^2 .

It is a cyclic number.

It is not a de Polignac number, because 13949161 - 2³ = 13949153 is a prime.

It is not a weakly prime, because it can be changed into another prime (13949167) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6974580 + 6974581.

It is an arithmetic number, because the mean of its divisors is an integer number (6974581).

Almost surely, 2^13949161 is an apocalyptic number.

It is an amenable number.

13949161 is a deficient number, since it is larger than the sum of its proper divisors (1).

13949161 is an equidigital number, since it uses as much as digits as its factorization.

13949161 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 5832, while the sum is 34.

The square root of 13949161 is about 3734.8575608716. The cubic root of 13949161 is about 240.7221363263.

The spelling of 13949161 in words is "thirteen million, nine hundred forty-nine thousand, one hundred sixty-one".