507249161 has 8 divisors (see below), whose sum is σ = 518758944. Its totient is φ = 495855360.

The previous prime is 507249157. The next prime is 507249191. The reversal of 507249161 is 161942705.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 507249161 - 2² = 507249157 is a prime.

It is a super-2 number, since 2×507249161² = 514603422670407842, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (507249131) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 20120 + ... + 37673.

It is an arithmetic number, because the mean of its divisors is an integer number (64844868).

Almost surely, 2^507249161 is an apocalyptic number.

It is an amenable number.

507249161 is a deficient number, since it is larger than the sum of its proper divisors (11509783).

507249161 is a wasteful number, since it uses less digits than its factorization.

507249161 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 57991.

The product of its (nonzero) digits is 15120, while the sum is 35.

The square root of 507249161 is about 22522.1926330453. The cubic root of 507249161 is about 797.5179116989.

The spelling of 507249161 in words is "five hundred seven million, two hundred forty-nine thousand, one hundred sixty-one".