507242161 has 16 divisors (see below), whose sum is σ = 549504000. Its totient is φ = 466785088.

The previous prime is 507242159. The next prime is 507242227. The reversal of 507242161 is 161242705.

It is a cyclic number.

It is not a de Polignac number, because 507242161 - 2¹ = 507242159 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (507242261) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 210240 + ... + 212638.

It is an arithmetic number, because the mean of its divisors is an integer number (34344000).

Almost surely, 2^507242161 is an apocalyptic number.

It is an amenable number.

507242161 is a deficient number, since it is larger than the sum of its proper divisors (42261839).

507242161 is a wasteful number, since it uses less digits than its factorization.

507242161 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2768.

The product of its (nonzero) digits is 3360, while the sum is 28.

The square root of 507242161 is about 22522.0372302330. The cubic root of 507242161 is about 797.5142431198.

Adding to 507242161 its reverse (161242705), we get a palindrome (668484866).

The spelling of 507242161 in words is "five hundred seven million, two hundred forty-two thousand, one hundred sixty-one".