523542130 has 32 divisors (see below), whose sum is σ = 957841200. Its totient is φ = 205996032.

The previous prime is 523542113. The next prime is 523542163. The reversal of 523542130 is 31245325.

It can be written as a sum of positive squares in 8 ways, for example, as 157929489 + 365612641 = 12567^2 + 19121^2 .

It is a junction number, because it is equal to n+sod(n) for n = 523542095 and 523542104.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 370866 + ... + 372274.

Almost surely, 2^523542130 is an apocalyptic number.

523542130 is a deficient number, since it is larger than the sum of its proper divisors (434299070).

523542130 is a wasteful number, since it uses less digits than its factorization.

523542130 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1998.

The product of its (nonzero) digits is 3600, while the sum is 25.

The square root of 523542130 is about 22881.0430269251. The cubic root of 523542130 is about 805.9669103685.

Adding to 523542130 its reverse (31245325), we get a palindrome (554787455).

The spelling of 523542130 in words is "five hundred twenty-three million, five hundred forty-two thousand, one hundred thirty".