26749145 has 8 divisors (see below), whose sum is σ = 32394120. Its totient is φ = 21202560.

The previous prime is 26749133. The next prime is 26749159. The reversal of 26749145 is 54194762.

It can be written as a sum of positive squares in 4 ways, for example, as 4583881 + 22165264 = 2141^2 + 4708^2 .

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

It is not a de Polignac number, because 26749145 - 2⁶ = 26749081 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 26749099 and 26749108.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 23996 + ... + 25085.

It is an arithmetic number, because the mean of its divisors is an integer number (4049265).

Almost surely, 2^26749145 is an apocalyptic number.

It is an amenable number.

26749145 is a deficient number, since it is larger than the sum of its proper divisors (5644975).

26749145 is a wasteful number, since it uses less digits than its factorization.

26749145 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 49195.

The product of its digits is 60480, while the sum is 38.

The square root of 26749145 is about 5171.9575597640. The cubic root of 26749145 is about 299.0680150860.

The spelling of 26749145 in words is "twenty-six million, seven hundred forty-nine thousand, one hundred forty-five".