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13403197 is a prime number
BaseRepresentation
bin110011001000…
…010000111101
3221012221201201
4303020100331
511412400242
61155135501
7221632243
oct63102075
927187651
1013403197
117625025
1245a4591
132a138b2
141acc793
15129b4b7
hexcc843d

13403197 has 2 divisors, whose sum is σ = 13403198. Its totient is φ = 13403196.

The previous prime is 13403179. The next prime is 13403209. The reversal of 13403197 is 79130431.

Together with previous prime (13403179) it forms an Ormiston pair, because they use the same digits, order apart.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 12013156 + 1390041 = 3466^2 + 1179^2 .

It is a cyclic number.

It is not a de Polignac number, because 13403197 - 27 = 13403069 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (13403107) 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, 6701598 + 6701599.

It is an arithmetic number, because the mean of its divisors is an integer number (6701599).

Almost surely, 213403197 is an apocalyptic number.

It is an amenable number.

13403197 is a deficient number, since it is larger than the sum of its proper divisors (1).

13403197 is an equidigital number, since it uses as much as digits as its factorization.

13403197 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2268, while the sum is 28.

The square root of 13403197 is about 3661.0376944249. The cubic root of 13403197 is about 237.5396617050.

The spelling of 13403197 in words is "thirteen million, four hundred three thousand, one hundred ninety-seven".