7745161 has 2 divisors, whose sum is σ = 7745162. Its totient is φ = 7745160.

The previous prime is 7745147. The next prime is 7745189. The reversal of 7745161 is 1615477.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 6350400 + 1394761 = 2520^2 + 1181^2 .

It is an emirp because it is prime and its reverse (1615477) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 7745161 - 2⁷ = 7745033 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (7745131) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3872580 + 3872581.

It is an arithmetic number, because the mean of its divisors is an integer number (3872581).

Almost surely, 2^7745161 is an apocalyptic number.

It is an amenable number.

7745161 is a deficient number, since it is larger than the sum of its proper divisors (1).

7745161 is an equidigital number, since it uses as much as digits as its factorization.

7745161 is an evil number, because the sum of its binary digits is even.

The product of its digits is 5880, while the sum is 31.

The square root of 7745161 is about 2783.0129356509. The cubic root of 7745161 is about 197.8533843012.

The spelling of 7745161 in words is "seven million, seven hundred forty-five thousand, one hundred sixty-one".