500006121 has 4 divisors (see below), whose sum is σ = 666674832. Its totient is φ = 333337412.

The previous prime is 500006119. The next prime is 500006137. The reversal of 500006121 is 121600005.

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 not a de Polignac number, because 500006121 - 2¹ = 500006119 is a prime.

It is a super-2 number, since 2×500006121² = 500012242074933282, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 500006121.

It is not an unprimeable number, because it can be changed into a prime (500006141) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 83334351 + ... + 83334356.

It is an arithmetic number, because the mean of its divisors is an integer number (166668708).

Almost surely, 2^500006121 is an apocalyptic number.

It is an amenable number.

500006121 is a deficient number, since it is larger than the sum of its proper divisors (166668711).

500006121 is a wasteful number, since it uses less digits than its factorization.

500006121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 166668710.

The product of its (nonzero) digits is 60, while the sum is 15.

The square root of 500006121 is about 22360.8166442999. The cubic root of 500006121 is about 793.7037647982.

Adding to 500006121 its reverse (121600005), we get a palindrome (621606126).

The spelling of 500006121 in words is "five hundred million, six thousand, one hundred twenty-one".