512161241 has 4 divisors (see below), whose sum is σ = 520842000. Its totient is φ = 503480484.

The previous prime is 512161189. The next prime is 512161249. The reversal of 512161241 is 142161215.

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 a de Polignac number, because none of the positive numbers 2^k-512161241 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (512161249) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4340291 + ... + 4340408.

It is an arithmetic number, because the mean of its divisors is an integer number (130210500).

Almost surely, 2^512161241 is an apocalyptic number.

It is an amenable number.

512161241 is a deficient number, since it is larger than the sum of its proper divisors (8680759).

512161241 is an equidigital number, since it uses as much as digits as its factorization.

512161241 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8680758.

The product of its digits is 480, while the sum is 23.

The square root of 512161241 is about 22630.9796738895. The cubic root of 512161241 is about 800.0839708733.

The spelling of 512161241 in words is "five hundred twelve million, one hundred sixty-one thousand, two hundred forty-one".