26286137 has 2 divisors, whose sum is σ = 26286138. Its totient is φ = 26286136.

The previous prime is 26286121. The next prime is 26286149. The reversal of 26286137 is 73168262.

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., 23658496 + 2627641 = 4864^2 + 1621^2 .

It is a cyclic number.

It is not a de Polignac number, because 26286137 - 2⁴ = 26286121 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 26286097 and 26286106.

It is not a weakly prime, because it can be changed into another prime (26286037) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 13143068 + 13143069.

It is an arithmetic number, because the mean of its divisors is an integer number (13143069).

Almost surely, 2^26286137 is an apocalyptic number.

It is an amenable number.

26286137 is a deficient number, since it is larger than the sum of its proper divisors (1).

26286137 is an equidigital number, since it uses as much as digits as its factorization.

26286137 is an evil number, because the sum of its binary digits is even.

The product of its digits is 24192, while the sum is 35.

The square root of 26286137 is about 5127.0007801833. Note that the first 3 decimals coincide. The cubic root of 26286137 is about 297.3324132045.

The spelling of 26286137 in words is "twenty-six million, two hundred eighty-six thousand, one hundred thirty-seven".