131342442 has 96 divisors (see below), whose sum is σ = 353108160. Its totient is φ = 32094720.

The previous prime is 131342441. The next prime is 131342447. The reversal of 131342442 is 244243131.

131342442 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is not an unprimeable number, because it can be changed into a prime (131342441) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 53784 + ... + 56172.

It is an arithmetic number, because the mean of its divisors is an integer number (3678210).

Almost surely, 2^131342442 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 131342442, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (176554080).

131342442 is an abundant number, since it is smaller than the sum of its proper divisors (221765718).

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

131342442 is a wasteful number, since it uses less digits than its factorization.

131342442 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2436 (or 2429 counting only the distinct ones).

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

The square root of 131342442 is about 11460.4730268868. The cubic root of 131342442 is about 508.3174617876.

Adding to 131342442 its reverse (244243131), we get a palindrome (375585573).

It can be divided in two parts, 13134 and 2442, that added together give a triangular number (15576 = T₁₇₆).

The spelling of 131342442 in words is "one hundred thirty-one million, three hundred forty-two thousand, four hundred forty-two".