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13100173 is a prime number
BaseRepresentation
bin110001111110…
…010010001101
3220122120001121
4301332102031
511323201143
61144440541
7216230632
oct61762215
926576047
1013100173
117438399
124479151
1329389a8
141a50189
15123b7ed
hexc7e48d

13100173 has 2 divisors, whose sum is σ = 13100174. Its totient is φ = 13100172.

The previous prime is 13100123. The next prime is 13100189. The reversal of 13100173 is 37100131.

It is a happy number.

It is an a-pointer prime, because the next prime (13100189) can be obtained adding 13100173 to its sum of digits (16).

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 8421604 + 4678569 = 2902^2 + 2163^2 .

It is an emirp because it is prime and its reverse (37100131) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 13100173 - 221 = 11003021 is a prime.

It is a super-2 number, since 2×131001732 = 343229065259858, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (13100123) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6550086 + 6550087.

It is an arithmetic number, because the mean of its divisors is an integer number (6550087).

Almost surely, 213100173 is an apocalyptic number.

It is an amenable number.

13100173 is a deficient number, since it is larger than the sum of its proper divisors (1).

13100173 is an equidigital number, since it uses as much as digits as its factorization.

13100173 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 63, while the sum is 16.

The square root of 13100173 is about 3619.4161131321. The cubic root of 13100173 is about 235.7358734699.

The spelling of 13100173 in words is "thirteen million, one hundred thousand, one hundred seventy-three".