26208139 has 8 divisors (see below), whose sum is σ = 26602688. Its totient is φ = 25816320.

The previous prime is 26208131. The next prime is 26208179. The reversal of 26208139 is 93180262.

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

It is a cyclic number.

It is not a de Polignac number, because 26208139 - 2³ = 26208131 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 26208139.

It is not an unprimeable number, because it can be changed into a prime (26208131) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 25789 + ... + 26785.

It is an arithmetic number, because the mean of its divisors is an integer number (3325336).

Almost surely, 2^26208139 is an apocalyptic number.

26208139 is a deficient number, since it is larger than the sum of its proper divisors (394549).

26208139 is an equidigital number, since it uses as much as digits as its factorization.

26208139 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1365.

The product of its (nonzero) digits is 5184, while the sum is 31.

The square root of 26208139 is about 5119.3885377064. The cubic root of 26208139 is about 297.0380335758.

The spelling of 26208139 in words is "twenty-six million, two hundred eight thousand, one hundred thirty-nine".