131530052 has 12 divisors (see below), whose sum is σ = 230564796. Its totient is φ = 65654400.

The previous prime is 131530039. The next prime is 131530093. The reversal of 131530052 is 250035131.

It can be written as a sum of positive squares in 2 ways, for example, as 79459396 + 52070656 = 8914^2 + 7216^2 .

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 3 ways as a sum of consecutive naturals, for example, 24953 + ... + 29760.

It is an arithmetic number, because the mean of its divisors is an integer number (19213733).

Almost surely, 2^131530052 is an apocalyptic number.

It is an amenable number.

131530052 is a deficient number, since it is larger than the sum of its proper divisors (99034744).

131530052 is a wasteful number, since it uses less digits than its factorization.

131530052 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 55318 (or 55316 counting only the distinct ones).

The product of its (nonzero) digits is 450, while the sum is 20.

The square root of 131530052 is about 11468.6551957934. The cubic root of 131530052 is about 508.5593741169.

Adding to 131530052 its reverse (250035131), we get a palindrome (381565183).

The spelling of 131530052 in words is "one hundred thirty-one million, five hundred thirty thousand, fifty-two".