504642122 has 4 divisors (see below), whose sum is σ = 756963186. Its totient is φ = 252321060.

The previous prime is 504642113. The next prime is 504642133. The reversal of 504642122 is 221246405.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 221246405 = 5 ⋅44249281.

It can be written as a sum of positive squares in only one way, i.e., 486246601 + 18395521 = 22051^2 + 4289^2 .

It is a junction number, because it is equal to n+sod(n) for n = 504642091 and 504642100.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 126160529 + ... + 126160532.

Almost surely, 2^504642122 is an apocalyptic number.

504642122 is a deficient number, since it is larger than the sum of its proper divisors (252321064).

504642122 is a wasteful number, since it uses less digits than its factorization.

504642122 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 252321063.

The product of its (nonzero) digits is 3840, while the sum is 26.

The square root of 504642122 is about 22464.2409620267. The cubic root of 504642122 is about 796.1492664279.

Adding to 504642122 its reverse (221246405), we get a palindrome (725888527).

The spelling of 504642122 in words is "five hundred four million, six hundred forty-two thousand, one hundred twenty-two".