523504142 has 24 divisors (see below), whose sum is σ = 932904864. Its totient is φ = 219583392.

The previous prime is 523504129. The next prime is 523504187. The reversal of 523504142 is 241405325.

It is a happy number.

It is a congruent number.

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 in 11 ways as a sum of consecutive naturals, for example, 52223 + ... + 61434.

It is an arithmetic number, because the mean of its divisors is an integer number (38871036).

Almost surely, 2^523504142 is an apocalyptic number.

523504142 is a deficient number, since it is larger than the sum of its proper divisors (409400722).

523504142 is a wasteful number, since it uses less digits than its factorization.

523504142 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 113720 (or 113713 counting only the distinct ones).

The product of its (nonzero) digits is 4800, while the sum is 26.

The square root of 523504142 is about 22880.2128923662. The cubic root of 523504142 is about 805.9474163554.

Adding to 523504142 its reverse (241405325), we get a palindrome (764909467).

The spelling of 523504142 in words is "five hundred twenty-three million, five hundred four thousand, one hundred forty-two".