26681145 has 8 divisors (see below), whose sum is σ = 42689856. Its totient is φ = 14229936.

The previous prime is 26681099. The next prime is 26681153. The reversal of 26681145 is 54118662.

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

It is not a de Polignac number, because 26681145 - 2¹⁴ = 26664761 is a prime.

It is a super-2 number, since 2×26681145² = 1423766997022050, which contains 22 as substring.

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, 889357 + ... + 889386.

It is an arithmetic number, because the mean of its divisors is an integer number (5336232).

Almost surely, 2^26681145 is an apocalyptic number.

It is an amenable number.

26681145 is a deficient number, since it is larger than the sum of its proper divisors (16008711).

26681145 is a wasteful number, since it uses less digits than its factorization.

26681145 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1778751.

The product of its digits is 11520, while the sum is 33.

The square root of 26681145 is about 5165.3794633115. The cubic root of 26681145 is about 298.8143760478.

The spelling of 26681145 in words is "twenty-six million, six hundred eighty-one thousand, one hundred forty-five".