131940322 has 16 divisors (see below), whose sum is σ = 200333952. Its totient is φ = 65165760.

The previous prime is 131940307. The next prime is 131940323. The reversal of 131940322 is 223049131.

It is not an unprimeable number, because it can be changed into a prime (131940323) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 149322 + ... + 150202.

It is an arithmetic number, because the mean of its divisors is an integer number (12520872).

Almost surely, 2^131940322 is an apocalyptic number.

131940322 is a deficient number, since it is larger than the sum of its proper divisors (68393630).

131940322 is a wasteful number, since it uses less digits than its factorization.

131940322 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1713.

The product of its (nonzero) digits is 1296, while the sum is 25.

The square root of 131940322 is about 11486.5278478747. The cubic root of 131940322 is about 509.0875933052.

Adding to 131940322 its reverse (223049131), we get a palindrome (354989453).

The spelling of 131940322 in words is "one hundred thirty-one million, nine hundred forty thousand, three hundred twenty-two".