131230532 has 6 divisors (see below), whose sum is σ = 229653438. Its totient is φ = 65615264.

The previous prime is 131230529. The next prime is 131230537. The reversal of 131230532 is 235032131.

It can be written as a sum of positive squares in only one way, i.e., 92467456 + 38763076 = 9616^2 + 6226^2 .

It is not an unprimeable number, because it can be changed into a prime (131230537) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 16403813 + ... + 16403820.

It is an arithmetic number, because the mean of its divisors is an integer number (38275573).

Almost surely, 2^131230532 is an apocalyptic number.

It is an amenable number.

131230532 is a deficient number, since it is larger than the sum of its proper divisors (98422906).

131230532 is a wasteful number, since it uses less digits than its factorization.

131230532 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 32807637 (or 32807635 counting only the distinct ones).

The product of its (nonzero) digits is 540, while the sum is 20.

The square root of 131230532 is about 11455.5895527031. The cubic root of 131230532 is about 508.1730505564.

Adding to 131230532 its reverse (235032131), we get a palindrome (366262663).

The spelling of 131230532 in words is "one hundred thirty-one million, two hundred thirty thousand, five hundred thirty-two".