7208161 has 2 divisors, whose sum is σ = 7208162. Its totient is φ = 7208160.

The previous prime is 7208147. The next prime is 7208171. The reversal of 7208161 is 1618027.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 6599761 + 608400 = 2569^2 + 780^2 .

It is a cyclic number.

It is not a de Polignac number, because 7208161 - 2⁵ = 7208129 is a prime.

It is not a weakly prime, because it can be changed into another prime (7208141) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3604080 + 3604081.

It is an arithmetic number, because the mean of its divisors is an integer number (3604081).

Almost surely, 2^7208161 is an apocalyptic number.

It is an amenable number.

7208161 is a deficient number, since it is larger than the sum of its proper divisors (1).

7208161 is an equidigital number, since it uses as much as digits as its factorization.

7208161 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 672, while the sum is 25.

The square root of 7208161 is about 2684.8018548861. The cubic root of 7208161 is about 193.1708064001.

The spelling of 7208161 in words is "seven million, two hundred eight thousand, one hundred sixty-one".