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BaseRepresentation
bin100000010100111001
320201122001
4200110321
513214114
62501001
71061014
oct402471
9221561
10132409
1190532
1264761
1348364
143637b
1529374
hex20539

132409 has 2 divisors, whose sum is σ = 132410. Its totient is φ = 132408.

The previous prime is 132403. The next prime is 132421. The reversal of 132409 is 904231.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 129600 + 2809 = 360^2 + 53^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-132409 is a prime.

It is not a weakly prime, because it can be changed into another prime (132403) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 66204 + 66205.

It is an arithmetic number, because the mean of its divisors is an integer number (66205).

2132409 is an apocalyptic number.

It is an amenable number.

132409 is a deficient number, since it is larger than the sum of its proper divisors (1).

132409 is an equidigital number, since it uses as much as digits as its factorization.

132409 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 216, while the sum is 19.

The square root of 132409 is about 363.8804748815. The cubic root of 132409 is about 50.9689674084.

The spelling of 132409 in words is "one hundred thirty-two thousand, four hundred nine".