26945129 has 4 divisors (see below), whose sum is σ = 26981760. Its totient is φ = 26908500.

The previous prime is 26945117. The next prime is 26945131. The reversal of 26945129 is 92154962.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 26945129 - 2⁸ = 26944873 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 26945092 and 26945101.

It is not an unprimeable number, because it can be changed into a prime (26945179) 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 in 3 ways as a sum of consecutive naturals, for example, 17189 + ... + 18690.

It is an arithmetic number, because the mean of its divisors is an integer number (6745440).

Almost surely, 2^26945129 is an apocalyptic number.

It is an amenable number.

26945129 is a deficient number, since it is larger than the sum of its proper divisors (36631).

26945129 is an equidigital number, since it uses as much as digits as its factorization.

26945129 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 36630.

The product of its digits is 38880, while the sum is 38.

The square root of 26945129 is about 5190.8697729764. The cubic root of 26945129 is about 299.7966362492.

The spelling of 26945129 in words is "twenty-six million, nine hundred forty-five thousand, one hundred twenty-nine".