161035573 has 2 divisors, whose sum is σ = 161035574. Its totient is φ = 161035572.

The previous prime is 161035513. The next prime is 161035601. The reversal of 161035573 is 375530161.

161035573 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 114768369 + 46267204 = 10713^2 + 6802^2 .

It is an emirp because it is prime and its reverse (375530161) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-161035573 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (161035513) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 80517786 + 80517787.

It is an arithmetic number, because the mean of its divisors is an integer number (80517787).

Almost surely, 2^161035573 is an apocalyptic number.

It is an amenable number.

161035573 is a deficient number, since it is larger than the sum of its proper divisors (1).

161035573 is an equidigital number, since it uses as much as digits as its factorization.

161035573 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 9450, while the sum is 31.

The square root of 161035573 is about 12689.9792356016. The cubic root of 161035573 is about 544.0522461445.

The spelling of 161035573 in words is "one hundred sixty-one million, thirty-five thousand, five hundred seventy-three".