503150121 has 12 divisors (see below), whose sum is σ = 728972400. Its totient is φ = 334418040.

The previous prime is 503150117. The next prime is 503150149. The reversal of 503150121 is 121051305.

503150121 is a `hidden beast` number, since 503 + 150 + 12 + 1 = 666.

It is not a de Polignac number, because 503150121 - 2² = 503150117 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 503150094 and 503150103.

It is not an unprimeable number, because it can be changed into a prime (503150321) 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 11 ways as a sum of consecutive naturals, for example, 81471 + ... + 87428.

It is an arithmetic number, because the mean of its divisors is an integer number (60747700).

Almost surely, 2^503150121 is an apocalyptic number.

It is an amenable number.

503150121 is a deficient number, since it is larger than the sum of its proper divisors (225822279).

503150121 is a wasteful number, since it uses less digits than its factorization.

503150121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 169236 (or 169233 counting only the distinct ones).

The product of its (nonzero) digits is 150, while the sum is 18.

The square root of 503150121 is about 22431.0080246074. The cubic root of 503150121 is about 795.3638728266.

The spelling of 503150121 in words is "five hundred three million, one hundred fifty thousand, one hundred twenty-one".