26105129 has 2 divisors, whose sum is σ = 26105130. Its totient is φ = 26105128.

The previous prime is 26105113. The next prime is 26105153. The reversal of 26105129 is 92150162.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 15366400 + 10738729 = 3920^2 + 3277^2 .

It is a cyclic number.

It is not a de Polignac number, because 26105129 - 2⁴ = 26105113 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 26105098 and 26105107.

It is not a weakly prime, because it can be changed into another prime (26105179) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 13052564 + 13052565.

It is an arithmetic number, because the mean of its divisors is an integer number (13052565).

Almost surely, 2^26105129 is an apocalyptic number.

It is an amenable number.

26105129 is a deficient number, since it is larger than the sum of its proper divisors (1).

26105129 is an equidigital number, since it uses as much as digits as its factorization.

26105129 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1080, while the sum is 26.

The square root of 26105129 is about 5109.3178605368. The cubic root of 26105129 is about 296.6483573826.

The spelling of 26105129 in words is "twenty-six million, one hundred five thousand, one hundred twenty-nine".