26138201 has 2 divisors, whose sum is σ = 26138202. Its totient is φ = 26138200.

The previous prime is 26138179. The next prime is 26138213. The reversal of 26138201 is 10283162.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 22316176 + 3822025 = 4724^2 + 1955^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-26138201 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is a zygodrome in base 13.

It is not a weakly prime, because it can be changed into another prime (26138291) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 13069100 + 13069101.

It is an arithmetic number, because the mean of its divisors is an integer number (13069101).

Almost surely, 2^26138201 is an apocalyptic number.

It is an amenable number.

26138201 is a deficient number, since it is larger than the sum of its proper divisors (1).

26138201 is an equidigital number, since it uses as much as digits as its factorization.

26138201 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 576, while the sum is 23.

The square root of 26138201 is about 5112.5532760060. The cubic root of 26138201 is about 296.7735768925.

The spelling of 26138201 in words is "twenty-six million, one hundred thirty-eight thousand, two hundred one".