26158213 has 2 divisors, whose sum is σ = 26158214. Its totient is φ = 26158212.

The previous prime is 26158177. The next prime is 26158219. The reversal of 26158213 is 31285162.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 24770529 + 1387684 = 4977^2 + 1178^2 .

It is a cyclic number.

It is not a de Polignac number, because 26158213 - 2⁹ = 26157701 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (26158219) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 13079106 + 13079107.

It is an arithmetic number, because the mean of its divisors is an integer number (13079107).

Almost surely, 2^26158213 is an apocalyptic number.

It is an amenable number.

26158213 is a deficient number, since it is larger than the sum of its proper divisors (1).

26158213 is an equidigital number, since it uses as much as digits as its factorization.

26158213 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 2880, while the sum is 28.

The square root of 26158213 is about 5114.5100449603. The cubic root of 26158213 is about 296.8492964339.

The spelling of 26158213 in words is "twenty-six million, one hundred fifty-eight thousand, two hundred thirteen".