131302422 has 24 divisors (see below), whose sum is σ = 293666880. Its totient is φ = 42355440.

The previous prime is 131302393. The next prime is 131302429. The reversal of 131302422 is 224203131.

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

It is a junction number, because it is equal to n+sod(n) for n = 131302395 and 131302404.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (131302429) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 117097 + ... + 118212.

It is an arithmetic number, because the mean of its divisors is an integer number (12236120).

Almost surely, 2^131302422 is an apocalyptic number.

131302422 is an abundant number, since it is smaller than the sum of its proper divisors (162364458).

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

131302422 is a wasteful number, since it uses less digits than its factorization.

131302422 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 235348 (or 235345 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 18.

The square root of 131302422 is about 11458.7268926351. The cubic root of 131302422 is about 508.2658284871.

Adding to 131302422 its reverse (224203131), we get a palindrome (355505553).

The spelling of 131302422 in words is "one hundred thirty-one million, three hundred two thousand, four hundred twenty-two".