505122133 has 4 divisors (see below), whose sum is σ = 505171008. Its totient is φ = 505073260.

The previous prime is 505122119. The next prime is 505122181. The reversal of 505122133 is 331221505.

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, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-505122133 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (505122103) 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, 2173 + ... + 31858.

It is an arithmetic number, because the mean of its divisors is an integer number (126292752).

Almost surely, 2^505122133 is an apocalyptic number.

It is an amenable number.

505122133 is a deficient number, since it is larger than the sum of its proper divisors (48875).

505122133 is a wasteful number, since it uses less digits than its factorization.

505122133 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 48874.

The product of its (nonzero) digits is 900, while the sum is 22.

The square root of 505122133 is about 22474.9223135476. The cubic root of 505122133 is about 796.4016164159.

Adding to 505122133 its reverse (331221505), we get a palindrome (836343638).

The spelling of 505122133 in words is "five hundred five million, one hundred twenty-two thousand, one hundred thirty-three".