512066161 has 4 divisors (see below), whose sum is σ = 512292352. Its totient is φ = 511839972.

The previous prime is 512066141. The next prime is 512066171. The reversal of 512066161 is 161660215.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 512066161 - 2⁹ = 512065649 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (512066141) 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 in 3 ways as a sum of consecutive naturals, for example, 109665 + ... + 114238.

It is an arithmetic number, because the mean of its divisors is an integer number (128073088).

Almost surely, 2^512066161 is an apocalyptic number.

It is an amenable number.

512066161 is a deficient number, since it is larger than the sum of its proper divisors (226191).

512066161 is a wasteful number, since it uses less digits than its factorization.

512066161 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 226190.

The product of its (nonzero) digits is 2160, while the sum is 28.

The square root of 512066161 is about 22628.8789161107. The cubic root of 512066161 is about 800.0344573700.

The spelling of 512066161 in words is "five hundred twelve million, sixty-six thousand, one hundred sixty-one".