26205149 has 4 divisors (see below), whose sum is σ = 26237664. Its totient is φ = 26172636.

The previous prime is 26205133. The next prime is 26205163. The reversal of 26205149 is 94150262.

It is a happy number.

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 not a de Polignac number, because 26205149 - 2⁴ = 26205133 is a prime.

It is a super-2 number, since 2×26205149² = 1373419668224402, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (26205749) 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, 15017 + ... + 16670.

It is an arithmetic number, because the mean of its divisors is an integer number (6559416).

Almost surely, 2^26205149 is an apocalyptic number.

It is an amenable number.

26205149 is a deficient number, since it is larger than the sum of its proper divisors (32515).

26205149 is an equidigital number, since it uses as much as digits as its factorization.

26205149 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 32514.

The product of its (nonzero) digits is 4320, while the sum is 29.

The square root of 26205149 is about 5119.0965023137. The cubic root of 26205149 is about 297.0267371169.

The spelling of 26205149 in words is "twenty-six million, two hundred five thousand, one hundred forty-nine".