521161006 has 8 divisors (see below), whose sum is σ = 786109320. Its totient is φ = 259124568.

The previous prime is 521160977. The next prime is 521161007. The reversal of 521161006 is 600161125.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (521161007) 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, 727521 + ... + 728236.

It is an arithmetic number, because the mean of its divisors is an integer number (98263665).

Almost surely, 2^521161006 is an apocalyptic number.

521161006 is a deficient number, since it is larger than the sum of its proper divisors (264948314).

521161006 is a wasteful number, since it uses less digits than its factorization.

521161006 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1455938.

The product of its (nonzero) digits is 360, while the sum is 22.

The square root of 521161006 is about 22828.9510490517. The cubic root of 521161006 is about 804.7431795231.

The spelling of 521161006 in words is "five hundred twenty-one million, one hundred sixty-one thousand, six".