500245121 has 4 divisors (see below), whose sum is σ = 502449072. Its totient is φ = 498041172.

The previous prime is 500245117. The next prime is 500245127. The reversal of 500245121 is 121542005.

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 500245121 - 2² = 500245117 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 500245093 and 500245102.

It is not an unprimeable number, because it can be changed into a prime (500245127) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1101635 + ... + 1102088.

It is an arithmetic number, because the mean of its divisors is an integer number (125612268).

Almost surely, 2^500245121 is an apocalyptic number.

It is an amenable number.

500245121 is a deficient number, since it is larger than the sum of its proper divisors (2203951).

500245121 is a wasteful number, since it uses less digits than its factorization.

500245121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2203950.

The product of its (nonzero) digits is 400, while the sum is 20.

The square root of 500245121 is about 22366.1601755867. The cubic root of 500245121 is about 793.8302065725.

Adding to 500245121 its reverse (121542005), we get a palindrome (621787126).

The spelling of 500245121 in words is "five hundred million, two hundred forty-five thousand, one hundred twenty-one".