504123132 has 12 divisors (see below), whose sum is σ = 1176287336. Its totient is φ = 168041040.

The previous prime is 504123107. The next prime is 504123133. The reversal of 504123132 is 231321405.

It is a tau number, because it is divible by the number of its divisors (12).

It is a hoax number, since the sum of its digits (21) coincides with the sum of the digits of its distinct prime factors.

It is a junction number, because it is equal to n+sod(n) for n = 504123099 and 504123108.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (504123133) 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, 21005119 + ... + 21005142.

Almost surely, 2^504123132 is an apocalyptic number.

It is an amenable number.

504123132 is an abundant number, since it is smaller than the sum of its proper divisors (672164204).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

504123132 is a wasteful number, since it uses less digits than its factorization.

504123132 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 42010268 (or 42010266 counting only the distinct ones).

The product of its (nonzero) digits is 720, while the sum is 21.

The square root of 504123132 is about 22452.6865207707. The cubic root of 504123132 is about 795.8762444070.

Adding to 504123132 its reverse (231321405), we get a palindrome (735444537).

The spelling of 504123132 in words is "five hundred four million, one hundred twenty-three thousand, one hundred thirty-two".