131422201 has 2 divisors, whose sum is σ = 131422202. Its totient is φ = 131422200.

The previous prime is 131422169. The next prime is 131422217. The reversal of 131422201 is 102224131.

It is an a-pointer prime, because the next prime (131422217) can be obtained adding 131422201 to its sum of digits (16).

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 131331600 + 90601 = 11460^2 + 301^2 .

It is a cyclic number.

It is not a de Polignac number, because 131422201 - 2⁵ = 131422169 is a prime.

It is not a weakly prime, because it can be changed into another prime (131422231) 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 as a sum of consecutive naturals, namely, 65711100 + 65711101.

It is an arithmetic number, because the mean of its divisors is an integer number (65711101).

Almost surely, 2^131422201 is an apocalyptic number.

It is an amenable number.

131422201 is a deficient number, since it is larger than the sum of its proper divisors (1).

131422201 is an equidigital number, since it uses as much as digits as its factorization.

131422201 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 96, while the sum is 16.

The square root of 131422201 is about 11463.9522417009. The cubic root of 131422201 is about 508.4203345729.

Adding to 131422201 its reverse (102224131), we get a palindrome (233646332).

The spelling of 131422201 in words is "one hundred thirty-one million, four hundred twenty-two thousand, two hundred one".