26121065 has 8 divisors (see below), whose sum is σ = 32356608. Its totient is φ = 20222640.

The previous prime is 26121047. The next prime is 26121091. The reversal of 26121065 is 56012162.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 26121065 - 2¹⁶ = 26055529 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 26121065.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 84107 + ... + 84416.

It is an arithmetic number, because the mean of its divisors is an integer number (4044576).

Almost surely, 2^26121065 is an apocalyptic number.

It is an amenable number.

26121065 is a deficient number, since it is larger than the sum of its proper divisors (6235543).

26121065 is a wasteful number, since it uses less digits than its factorization.

26121065 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 168559.

The product of its (nonzero) digits is 720, while the sum is 23.

The square root of 26121065 is about 5110.8771262866. The cubic root of 26121065 is about 296.7087085700.

The spelling of 26121065 in words is "twenty-six million, one hundred twenty-one thousand, sixty-five".