131948177 has 2 divisors, whose sum is σ = 131948178. Its totient is φ = 131948176.

The previous prime is 131948161. The next prime is 131948191. The reversal of 131948177 is 771849131.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 128958736 + 2989441 = 11356^2 + 1729^2 .

It is an emirp because it is prime and its reverse (771849131) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 131948177 - 2⁴ = 131948161 is a prime.

It is not a weakly prime, because it can be changed into another prime (131948137) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 65974088 + 65974089.

It is an arithmetic number, because the mean of its divisors is an integer number (65974089).

Almost surely, 2^131948177 is an apocalyptic number.

It is an amenable number.

131948177 is a deficient number, since it is larger than the sum of its proper divisors (1).

131948177 is an equidigital number, since it uses as much as digits as its factorization.

131948177 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 42336, while the sum is 41.

The square root of 131948177 is about 11486.8697650840. The cubic root of 131948177 is about 509.0976958617.

The spelling of 131948177 in words is "one hundred thirty-one million, nine hundred forty-eight thousand, one hundred seventy-seven".