26146221 has 8 divisors (see below), whose sum is σ = 36912384. Its totient is φ = 16405440.

The previous prime is 26146189. The next prime is 26146229. The reversal of 26146221 is 12264162.

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

It is not a de Polignac number, because 26146221 - 2⁵ = 26146189 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 26146191 and 26146200.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (26146229) 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, 256285 + ... + 256386.

It is an arithmetic number, because the mean of its divisors is an integer number (4614048).

Almost surely, 2^26146221 is an apocalyptic number.

It is an amenable number.

26146221 is a deficient number, since it is larger than the sum of its proper divisors (10766163).

26146221 is a wasteful number, since it uses less digits than its factorization.

26146221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 512691.

The product of its digits is 1152, while the sum is 24.

The square root of 26146221 is about 5113.3375597549. The cubic root of 26146221 is about 296.8039268606.

The spelling of 26146221 in words is "twenty-six million, one hundred forty-six thousand, two hundred twenty-one".