132171397 has 2 divisors, whose sum is σ = 132171398. Its totient is φ = 132171396.

The previous prime is 132171373. The next prime is 132171407. The reversal of 132171397 is 793171231.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 111386916 + 20784481 = 10554^2 + 4559^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-132171397 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (132171337) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 66085698 + 66085699.

It is an arithmetic number, because the mean of its divisors is an integer number (66085699).

Almost surely, 2^132171397 is an apocalyptic number.

It is an amenable number.

132171397 is a deficient number, since it is larger than the sum of its proper divisors (1).

132171397 is an equidigital number, since it uses as much as digits as its factorization.

132171397 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 7938, while the sum is 34.

The square root of 132171397 is about 11496.5819703075. The cubic root of 132171397 is about 509.3846185194.

The spelling of 132171397 in words is "one hundred thirty-two million, one hundred seventy-one thousand, three hundred ninety-seven".