26280149 has 4 divisors (see below), whose sum is σ = 30034464. Its totient is φ = 22525836.

The previous prime is 26280143. The next prime is 26280161. The reversal of 26280149 is 94108262.

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 a de Polignac number, because none of the positive numbers 2^k-26280149 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (26280143) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1877147 + ... + 1877160.

It is an arithmetic number, because the mean of its divisors is an integer number (7508616).

Almost surely, 2^26280149 is an apocalyptic number.

It is an amenable number.

26280149 is a deficient number, since it is larger than the sum of its proper divisors (3754315).

26280149 is an equidigital number, since it uses as much as digits as its factorization.

26280149 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3754314.

The product of its (nonzero) digits is 6912, while the sum is 32.

The square root of 26280149 is about 5126.4167797790. The cubic root of 26280149 is about 297.3098339808.

The spelling of 26280149 in words is "twenty-six million, two hundred eighty thousand, one hundred forty-nine".