131342424 has 32 divisors (see below), whose sum is σ = 328950720. Its totient is φ = 43701536.

The previous prime is 131342423. The next prime is 131342429. The reversal of 131342424 is 424243131.

It is a Harshad number since it is a multiple of its sum of digits (24).

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 = 131342394 and 131342403.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (131342423) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 9427 + ... + 18749.

It is an arithmetic number, because the mean of its divisors is an integer number (10279710).

Almost surely, 2^131342424 is an apocalyptic number.

It is an amenable number.

131342424 is an abundant number, since it is smaller than the sum of its proper divisors (197608296).

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

131342424 is a wasteful number, since it uses less digits than its factorization.

131342424 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9919 (or 9915 counting only the distinct ones).

The product of its digits is 2304, while the sum is 24.

The square root of 131342424 is about 11460.4722415789. The cubic root of 131342424 is about 508.3174385666.

Adding to 131342424 its reverse (424243131), we get a palindrome (555585555).

The spelling of 131342424 in words is "one hundred thirty-one million, three hundred forty-two thousand, four hundred twenty-four".