26189101 has 2 divisors, whose sum is σ = 26189102. Its totient is φ = 26189100.

The previous prime is 26189077. The next prime is 26189123. The reversal of 26189101 is 10198162.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 23532201 + 2656900 = 4851^2 + 1630^2 .

It is a cyclic number.

It is not a de Polignac number, because 26189101 - 2¹³ = 26180909 is a prime.

It is a super-3 number, since 3×26189101³ (a number of 23 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a self number, because there is not a number n which added to its sum of digits gives 26189101.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (26181101) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 13094550 + 13094551.

It is an arithmetic number, because the mean of its divisors is an integer number (13094551).

Almost surely, 2^26189101 is an apocalyptic number.

It is an amenable number.

26189101 is a deficient number, since it is larger than the sum of its proper divisors (1).

26189101 is an equidigital number, since it uses as much as digits as its factorization.

26189101 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 864, while the sum is 28.

The square root of 26189101 is about 5117.5287981603. The cubic root of 26189101 is about 296.9660918032.

The spelling of 26189101 in words is "twenty-six million, one hundred eighty-nine thousand, one hundred one".