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13232161 is a prime number
BaseRepresentation
bin110010011110…
…100000100001
3220220021010001
4302132200201
511341412121
61151340001
7220320505
oct62364041
926807101
1013232161
117518578
124521601
132983aa7
141a86305
151265991
hexc9e821

13232161 has 2 divisors, whose sum is σ = 13232162. Its totient is φ = 13232160.

The previous prime is 13232147. The next prime is 13232203. The reversal of 13232161 is 16123231.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 11943936 + 1288225 = 3456^2 + 1135^2 .

It is a cyclic number.

It is not a de Polignac number, because 13232161 - 25 = 13232129 is a prime.

It is not a weakly prime, because it can be changed into another prime (13232561) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6616080 + 6616081.

It is an arithmetic number, because the mean of its divisors is an integer number (6616081).

Almost surely, 213232161 is an apocalyptic number.

It is an amenable number.

13232161 is a deficient number, since it is larger than the sum of its proper divisors (1).

13232161 is an equidigital number, since it uses as much as digits as its factorization.

13232161 is an evil number, because the sum of its binary digits is even.

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

The square root of 13232161 is about 3637.6037442250. The cubic root of 13232161 is about 236.5249315554.

Adding to 13232161 its reverse (16123231), we get a palindrome (29355392).

The spelling of 13232161 in words is "thirteen million, two hundred thirty-two thousand, one hundred sixty-one".