26130905 has 8 divisors (see below), whose sum is σ = 31384584. Its totient is φ = 20886400.

The previous prime is 26130869. The next prime is 26130931. The reversal of 26130905 is 50903162.

It can be written as a sum of positive squares in 4 ways, for example, as 3444736 + 22686169 = 1856^2 + 4763^2 .

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

It is not a de Polignac number, because 26130905 - 2¹⁸ = 25868761 is a prime.

It is a super-2 number, since 2×26130905² = 1365648392238050, which contains 22 as substring.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 9485 + ... + 11925.

It is an arithmetic number, because the mean of its divisors is an integer number (3923073).

Almost surely, 2^26130905 is an apocalyptic number.

It is an amenable number.

26130905 is a deficient number, since it is larger than the sum of its proper divisors (5253679).

26130905 is a wasteful number, since it uses less digits than its factorization.

26130905 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4587.

The product of its (nonzero) digits is 1620, while the sum is 26.

The square root of 26130905 is about 5111.8396884096. The cubic root of 26130905 is about 296.7459613537.

The spelling of 26130905 in words is "twenty-six million, one hundred thirty thousand, nine hundred five".