131828237 has 2 divisors, whose sum is σ = 131828238. Its totient is φ = 131828236.

The previous prime is 131828233. The next prime is 131828267. The reversal of 131828237 is 732828131.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 131652676 + 175561 = 11474^2 + 419^2 .

It is a cyclic number.

It is not a de Polignac number, because 131828237 - 2² = 131828233 is a prime.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 131828197 and 131828206.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (131828231) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 65914118 + 65914119.

It is an arithmetic number, because the mean of its divisors is an integer number (65914119).

Almost surely, 2^131828237 is an apocalyptic number.

It is an amenable number.

131828237 is a deficient number, since it is larger than the sum of its proper divisors (1).

131828237 is an equidigital number, since it uses as much as digits as its factorization.

131828237 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 16128, while the sum is 35.

The square root of 131828237 is about 11481.6478346969. The cubic root of 131828237 is about 508.9433936455.

The spelling of 131828237 in words is "one hundred thirty-one million, eight hundred twenty-eight thousand, two hundred thirty-seven".