26722141 has 2 divisors, whose sum is σ = 26722142. Its totient is φ = 26722140.

The previous prime is 26722139. The next prime is 26722169. The reversal of 26722141 is 14122762.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 13912900 + 12809241 = 3730^2 + 3579^2 .

It is a cyclic number.

It is not a de Polignac number, because 26722141 - 2¹ = 26722139 is a prime.

Together with 26722139, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (26722741) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 13361070 + 13361071.

It is an arithmetic number, because the mean of its divisors is an integer number (13361071).

Almost surely, 2^26722141 is an apocalyptic number.

It is an amenable number.

26722141 is a deficient number, since it is larger than the sum of its proper divisors (1).

26722141 is an equidigital number, since it uses as much as digits as its factorization.

26722141 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1344, while the sum is 25.

The square root of 26722141 is about 5169.3462836223. The cubic root of 26722141 is about 298.9673420631.

The spelling of 26722141 in words is "twenty-six million, seven hundred twenty-two thousand, one hundred forty-one".