45210161 has 2 divisors, whose sum is σ = 45210162. Its totient is φ = 45210160.

The previous prime is 45210149. The next prime is 45210181. The reversal of 45210161 is 16101254.

45210161 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an a-pointer prime, because the next prime (45210181) can be obtained adding 45210161 to its sum of digits (20).

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 24453025 + 20757136 = 4945^2 + 4556^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-45210161 is a prime.

It is a Chen prime.

It is an alternating number because its digits alternate between even and odd.

It is not a weakly prime, because it can be changed into another prime (45210181) 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, 22605080 + 22605081.

It is an arithmetic number, because the mean of its divisors is an integer number (22605081).

Almost surely, 2^45210161 is an apocalyptic number.

It is an amenable number.

45210161 is a deficient number, since it is larger than the sum of its proper divisors (1).

45210161 is an equidigital number, since it uses as much as digits as its factorization.

45210161 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 240, while the sum is 20.

The square root of 45210161 is about 6723.8501619236. The cubic root of 45210161 is about 356.2421893845.

The spelling of 45210161 in words is "forty-five million, two hundred ten thousand, one hundred sixty-one".