15206161 has 2 divisors, whose sum is σ = 15206162. Its totient is φ = 15206160.

The previous prime is 15206159. The next prime is 15206167. The reversal of 15206161 is 16160251.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 8673025 + 6533136 = 2945^2 + 2556^2 .

It is a cyclic number.

It is not a de Polignac number, because 15206161 - 2¹ = 15206159 is a prime.

Together with 15206159, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (15206167) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 7603080 + 7603081.

It is an arithmetic number, because the mean of its divisors is an integer number (7603081).

Almost surely, 2^15206161 is an apocalyptic number.

It is an amenable number.

15206161 is a deficient number, since it is larger than the sum of its proper divisors (1).

15206161 is an equidigital number, since it uses as much as digits as its factorization.

15206161 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 360, while the sum is 22.

The square root of 15206161 is about 3899.5077894524. The cubic root of 15206161 is about 247.7459297495.

The spelling of 15206161 in words is "fifteen million, two hundred six thousand, one hundred sixty-one".