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BaseRepresentation
bin110010000110…
…000111100101
3220201012002001
4302012013211
511330213021
61145245301
7216423322
oct62060745
926635061
1013132261
11745a50a
124493831
13294a48c
141a5bb49
151246091
hexc861e5

13132261 has 2 divisors, whose sum is σ = 13132262. Its totient is φ = 13132260.

The previous prime is 13132237. The next prime is 13132267. The reversal of 13132261 is 16223131.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 11189025 + 1943236 = 3345^2 + 1394^2 .

It is a cyclic number.

It is not a de Polignac number, because 13132261 - 29 = 13131749 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (13132267) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6566130 + 6566131.

It is an arithmetic number, because the mean of its divisors is an integer number (6566131).

Almost surely, 213132261 is an apocalyptic number.

It is an amenable number.

13132261 is a deficient number, since it is larger than the sum of its proper divisors (1).

13132261 is an equidigital number, since it uses as much as digits as its factorization.

13132261 is an odious number, because the sum of its binary digits is odd.

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

The square root of 13132261 is about 3623.8461611939. The cubic root of 13132261 is about 235.9281896330.

Adding to 13132261 its reverse (16223131), we get a palindrome (29355392).

The spelling of 13132261 in words is "thirteen million, one hundred thirty-two thousand, two hundred sixty-one".