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13255157 is a prime number
BaseRepresentation
bin110010100100…
…000111110101
3220221102122202
4302210013311
511343131112
61152034245
7220444526
oct62440765
926842582
1013255157
117533883
124532985
1329913b6
141a9084d
15126c6c2
hexca41f5

13255157 has 2 divisors, whose sum is σ = 13255158. Its totient is φ = 13255156.

The previous prime is 13255127. The next prime is 13255171. The reversal of 13255157 is 75155231.

It is a happy number.

13255157 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 11895601 + 1359556 = 3449^2 + 1166^2 .

It is an emirp because it is prime and its reverse (75155231) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 13255157 - 26 = 13255093 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (13255127) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6627578 + 6627579.

It is an arithmetic number, because the mean of its divisors is an integer number (6627579).

Almost surely, 213255157 is an apocalyptic number.

It is an amenable number.

13255157 is a deficient number, since it is larger than the sum of its proper divisors (1).

13255157 is an equidigital number, since it uses as much as digits as its factorization.

13255157 is an evil number, because the sum of its binary digits is even.

The product of its digits is 5250, while the sum is 29.

The square root of 13255157 is about 3640.7632441564. The cubic root of 13255157 is about 236.6618701225.

The spelling of 13255157 in words is "thirteen million, two hundred fifty-five thousand, one hundred fifty-seven".