131503230 has 32 divisors (see below), whose sum is σ = 350676000. Its totient is φ = 35067456.

The previous prime is 131503219. The next prime is 131503231. The reversal of 131503230 is 32305131.

131503230 is a `hidden beast` number, since 131 + 503 + 2 + 30 = 666.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (131503231) by changing a digit.

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, 243255 + ... + 243794.

It is an arithmetic number, because the mean of its divisors is an integer number (10958625).

Almost surely, 2^131503230 is an apocalyptic number.

131503230 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

131503230 is an abundant number, since it is smaller than the sum of its proper divisors (219172770).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

131503230 is a wasteful number, since it uses less digits than its factorization.

131503230 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 487065 (or 487059 counting only the distinct ones).

The product of its (nonzero) digits is 270, while the sum is 18.

The square root of 131503230 is about 11467.4857750075. The cubic root of 131503230 is about 508.5248027860.

Adding to 131503230 its reverse (32305131), we get a palindrome (163808361).

The spelling of 131503230 in words is "one hundred thirty-one million, five hundred three thousand, two hundred thirty".