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13925129 is a prime number
BaseRepresentation
bin110101000111…
…101100001001
3222012110200112
4311013230021
512031101004
61214244105
7226235021
oct65075411
928173615
1013925129
117951179
1247b6635
132b6732a
141bc6a81
151350e6e
hexd47b09

13925129 has 2 divisors, whose sum is σ = 13925130. Its totient is φ = 13925128.

The previous prime is 13925123. The next prime is 13925243. The reversal of 13925129 is 92152931.

13925129 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 13801225 + 123904 = 3715^2 + 352^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-13925129 is a prime.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 13925095 and 13925104.

It is not a weakly prime, because it can be changed into another prime (13925123) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6962564 + 6962565.

It is an arithmetic number, because the mean of its divisors is an integer number (6962565).

Almost surely, 213925129 is an apocalyptic number.

It is an amenable number.

13925129 is a deficient number, since it is larger than the sum of its proper divisors (1).

13925129 is an equidigital number, since it uses as much as digits as its factorization.

13925129 is an evil number, because the sum of its binary digits is even.

The product of its digits is 4860, while the sum is 32.

The square root of 13925129 is about 3731.6389160796. The cubic root of 13925129 is about 240.5838159459.

The spelling of 13925129 in words is "thirteen million, nine hundred twenty-five thousand, one hundred twenty-nine".