505432134 has 48 divisors (see below), whose sum is σ = 1164213648. Its totient is φ = 157925376.

The previous prime is 505432111. The next prime is 505432139. The reversal of 505432134 is 431234505.

It is a junction number, because it is equal to n+sod(n) for n = 505432098 and 505432107.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (505432139) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 75429 + ... + 81855.

It is an arithmetic number, because the mean of its divisors is an integer number (24254451).

Almost surely, 2^505432134 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 505432134, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (582106824).

505432134 is an abundant number, since it is smaller than the sum of its proper divisors (658781514).

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

505432134 is a wasteful number, since it uses less digits than its factorization.

505432134 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6709 (or 6706 counting only the distinct ones).

The product of its (nonzero) digits is 7200, while the sum is 27.

The square root of 505432134 is about 22481.8178535456. The cubic root of 505432134 is about 796.5645042885.

Adding to 505432134 its reverse (431234505), we get a palindrome (936666639).

The spelling of 505432134 in words is "five hundred five million, four hundred thirty-two thousand, one hundred thirty-four".