132947449 has 2 divisors, whose sum is σ = 132947450. Its totient is φ = 132947448.

The previous prime is 132947431. The next prime is 132947459. The reversal of 132947449 is 944749231.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 107495424 + 25452025 = 10368^2 + 5045^2 .

It is a cyclic number.

It is not a de Polignac number, because 132947449 - 2¹¹ = 132945401 is a prime.

It is not a weakly prime, because it can be changed into another prime (132947459) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 66473724 + 66473725.

It is an arithmetic number, because the mean of its divisors is an integer number (66473725).

Almost surely, 2^132947449 is an apocalyptic number.

It is an amenable number.

132947449 is a deficient number, since it is larger than the sum of its proper divisors (1).

132947449 is an equidigital number, since it uses as much as digits as its factorization.

132947449 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 217728, while the sum is 43.

The square root of 132947449 is about 11530.2839947679. The cubic root of 132947449 is about 510.3796340364.

The spelling of 132947449 in words is "one hundred thirty-two million, nine hundred forty-seven thousand, four hundred forty-nine".