131147837 has 2 divisors, whose sum is σ = 131147838. Its totient is φ = 131147836.

The previous prime is 131147833. The next prime is 131147839. The reversal of 131147837 is 738741131.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 104325796 + 26822041 = 10214^2 + 5179^2 .

It is a cyclic number.

It is not a de Polignac number, because 131147837 - 2² = 131147833 is a prime.

Together with 131147839, it forms a pair of twin primes.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 131147797 and 131147806.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (131147833) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 65573918 + 65573919.

It is an arithmetic number, because the mean of its divisors is an integer number (65573919).

Almost surely, 2^131147837 is an apocalyptic number.

It is an amenable number.

131147837 is a deficient number, since it is larger than the sum of its proper divisors (1).

131147837 is an equidigital number, since it uses as much as digits as its factorization.

131147837 is an evil number, because the sum of its binary digits is even.

The product of its digits is 14112, while the sum is 35.

The square root of 131147837 is about 11451.9796105302. The cubic root of 131147837 is about 508.0662862745.

Adding to 131147837 its reverse (738741131), we get a palindrome (869888968).

The spelling of 131147837 in words is "one hundred thirty-one million, one hundred forty-seven thousand, eight hundred thirty-seven".