131366424 has 64 divisors (see below), whose sum is σ = 379895040. Its totient is φ = 37077120.

The previous prime is 131366393. The next prime is 131366441. The reversal of 131366424 is 424663131.

It is a nude number because it is divisible by every one of its digits.

It is a junction number, because it is equal to n+sod(n) for n = 131366391 and 131366400.

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, 9234 + ... + 18654.

It is an arithmetic number, because the mean of its divisors is an integer number (5935860).

Almost surely, 2^131366424 is an apocalyptic number.

131366424 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 131366424, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (189947520).

131366424 is an abundant number, since it is smaller than the sum of its proper divisors (248528616).

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

131366424 is a wasteful number, since it uses less digits than its factorization.

131366424 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9520 (or 9516 counting only the distinct ones).

The product of its digits is 10368, while the sum is 30.

The square root of 131366424 is about 11461.5192710216. The cubic root of 131366424 is about 508.3483980366.

The spelling of 131366424 in words is "one hundred thirty-one million, three hundred sixty-six thousand, four hundred twenty-four".