131138322 has 16 divisors (see below), whose sum is σ = 299744832. Its totient is φ = 37468080.

The previous prime is 131138321. The next prime is 131138351. The reversal of 131138322 is 223831131.

131138322 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a junction number, because it is equal to n+sod(n) for n = 131138292 and 131138301.

It is not an unprimeable number, because it can be changed into a prime (131138321) 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, 1561129 + ... + 1561212.

It is an arithmetic number, because the mean of its divisors is an integer number (18734052).

Almost surely, 2^131138322 is an apocalyptic number.

131138322 is an abundant number, since it is smaller than the sum of its proper divisors (168606510).

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

131138322 is a wasteful number, since it uses less digits than its factorization.

131138322 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3122353.

The product of its digits is 864, while the sum is 24.

The square root of 131138322 is about 11451.5641726360. The cubic root of 131138322 is about 508.0539989512.

Adding to 131138322 its reverse (223831131), we get a palindrome (354969453).

The spelling of 131138322 in words is "one hundred thirty-one million, one hundred thirty-eight thousand, three hundred twenty-two".