507921161 has 8 divisors (see below), whose sum is σ = 567610848. Its totient is φ = 450484000.

The previous prime is 507921137. The next prime is 507921173. The reversal of 507921161 is 161129705.

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 507921161 - 2²² = 503726857 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (507321161) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 562655 + ... + 563556.

It is an arithmetic number, because the mean of its divisors is an integer number (70951356).

Almost surely, 2^507921161 is an apocalyptic number.

It is an amenable number.

507921161 is a deficient number, since it is larger than the sum of its proper divisors (59689687).

507921161 is a wasteful number, since it uses less digits than its factorization.

507921161 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1126263.

The product of its (nonzero) digits is 3780, while the sum is 32.

The square root of 507921161 is about 22537.1063138106. The cubic root of 507921161 is about 797.8699382673.

The spelling of 507921161 in words is "five hundred seven million, nine hundred twenty-one thousand, one hundred sixty-one".