131400212 has 12 divisors (see below), whose sum is σ = 230076756. Its totient is φ = 65664000.

The previous prime is 131400211. The next prime is 131400221. The reversal of 131400212 is 212004131.

It can be written as a sum of positive squares in 2 ways, for example, as 91508356 + 39891856 = 9566^2 + 6316^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (131400211) 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 3 ways as a sum of consecutive naturals, for example, 212 + ... + 16212.

It is an arithmetic number, because the mean of its divisors is an integer number (19173063).

Almost surely, 2^131400212 is an apocalyptic number.

It is an amenable number.

131400212 is a deficient number, since it is larger than the sum of its proper divisors (98676544).

131400212 is a wasteful number, since it uses less digits than its factorization.

131400212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18058 (or 18056 counting only the distinct ones).

The product of its (nonzero) digits is 48, while the sum is 14.

The square root of 131400212 is about 11462.9931518779. The cubic root of 131400212 is about 508.3919774201.

Adding to 131400212 its reverse (212004131), we get a palindrome (343404343).

The spelling of 131400212 in words is "one hundred thirty-one million, four hundred thousand, two hundred twelve".