132869549 has 2 divisors, whose sum is σ = 132869550. Its totient is φ = 132869548.

The previous prime is 132869543. The next prime is 132869567. The reversal of 132869549 is 945968231.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 131905225 + 964324 = 11485^2 + 982^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-132869549 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (132869543) 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, 66434774 + 66434775.

It is an arithmetic number, because the mean of its divisors is an integer number (66434775).

Almost surely, 2^132869549 is an apocalyptic number.

It is an amenable number.

132869549 is a deficient number, since it is larger than the sum of its proper divisors (1).

132869549 is an equidigital number, since it uses as much as digits as its factorization.

132869549 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 466560, while the sum is 47.

The square root of 132869549 is about 11526.9054390153. The cubic root of 132869549 is about 510.2799296250.

It can be divided in two parts, 132869 and 549, that multiplied together give a triangular number (72945081 = T₁₂₀₇₈).

The spelling of 132869549 in words is "one hundred thirty-two million, eight hundred sixty-nine thousand, five hundred forty-nine".