45345161 has 2 divisors, whose sum is σ = 45345162. Its totient is φ = 45345160.

The previous prime is 45345151. The next prime is 45345169. The reversal of 45345161 is 16154354.

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., 24010000 + 21335161 = 4900^2 + 4619^2 .

It is a cyclic number.

It is not a de Polignac number, because 45345161 - 2¹⁰ = 45344137 is a prime.

It is a super-2 number, since 2×45345161² = 4112367252231842, which contains 22 as substring.

It is a Sophie Germain prime.

It is a Chen prime.

It is a Curzon number.

It is not a weakly prime, because it can be changed into another prime (45345169) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 22672580 + 22672581.

It is an arithmetic number, because the mean of its divisors is an integer number (22672581).

Almost surely, 2^45345161 is an apocalyptic number.

It is an amenable number.

45345161 is a deficient number, since it is larger than the sum of its proper divisors (1).

45345161 is an equidigital number, since it uses as much as digits as its factorization.

45345161 is an evil number, because the sum of its binary digits is even.

The product of its digits is 7200, while the sum is 29.

The square root of 45345161 is about 6733.8815700902. The cubic root of 45345161 is about 356.5964232162.

The spelling of 45345161 in words is "forty-five million, three hundred forty-five thousand, one hundred sixty-one".