131340304 has 80 divisors (see below), whose sum is σ = 284267520. Its totient is φ = 58544640.

The previous prime is 131340289. The next prime is 131340311. The reversal of 131340304 is 403043131.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 330634 + ... + 331030.

It is an arithmetic number, because the mean of its divisors is an integer number (3553344).

Almost surely, 2^131340304 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 131340304, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (142133760).

131340304 is an abundant number, since it is smaller than the sum of its proper divisors (152927216).

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

131340304 is a wasteful number, since it uses less digits than its factorization.

131340304 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 488 (or 482 counting only the distinct ones).

The product of its (nonzero) digits is 432, while the sum is 19.

The square root of 131340304 is about 11460.3797493800. The cubic root of 131340304 is about 508.3147036321.

Adding to 131340304 its reverse (403043131), we get a palindrome (534383435).

The spelling of 131340304 in words is "one hundred thirty-one million, three hundred forty thousand, three hundred four".