26121937 has 2 divisors, whose sum is σ = 26121938. Its totient is φ = 26121936.

The previous prime is 26121923. The next prime is 26121947. The reversal of 26121937 is 73912162.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 24561936 + 1560001 = 4956^2 + 1249^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-26121937 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 26121899 and 26121908.

It is not a weakly prime, because it can be changed into another prime (26121947) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 13060968 + 13060969.

It is an arithmetic number, because the mean of its divisors is an integer number (13060969).

Almost surely, 2^26121937 is an apocalyptic number.

It is an amenable number.

26121937 is a deficient number, since it is larger than the sum of its proper divisors (1).

26121937 is an equidigital number, since it uses as much as digits as its factorization.

26121937 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 4536, while the sum is 31.

The square root of 26121937 is about 5110.9624338279. The cubic root of 26121937 is about 296.7120102107.

The spelling of 26121937 in words is "twenty-six million, one hundred twenty-one thousand, nine hundred thirty-seven".