131332177 has 2 divisors, whose sum is σ = 131332178. Its totient is φ = 131332176.

The previous prime is 131332133. The next prime is 131332211. The reversal of 131332177 is 771233131.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 119159056 + 12173121 = 10916^2 + 3489^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-131332177 is a prime.

It is a super-3 number, since 3×131332177³ (a number of 25 digits) contains 333 as substring.

It is not a weakly prime, because it can be changed into another prime (131332577) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 65666088 + 65666089.

It is an arithmetic number, because the mean of its divisors is an integer number (65666089).

Almost surely, 2^131332177 is an apocalyptic number.

It is an amenable number.

131332177 is a deficient number, since it is larger than the sum of its proper divisors (1).

131332177 is an equidigital number, since it uses as much as digits as its factorization.

131332177 is an evil number, because the sum of its binary digits is even.

The product of its digits is 2646, while the sum is 28.

The square root of 131332177 is about 11460.0251744924. The cubic root of 131332177 is about 508.3042190140.

The spelling of 131332177 in words is "one hundred thirty-one million, three hundred thirty-two thousand, one hundred seventy-seven".