26156971 has 2 divisors, whose sum is σ = 26156972. Its totient is φ = 26156970.

The previous prime is 26156941. The next prime is 26156987. The reversal of 26156971 is 17965162.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 26156971 - 2¹¹ = 26154923 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 26156971.

It is not a weakly prime, because it can be changed into another prime (26156941) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 13078485 + 13078486.

It is an arithmetic number, because the mean of its divisors is an integer number (13078486).

Almost surely, 2^26156971 is an apocalyptic number.

26156971 is a deficient number, since it is larger than the sum of its proper divisors (1).

26156971 is an equidigital number, since it uses as much as digits as its factorization.

26156971 is an evil number, because the sum of its binary digits is even.

The product of its digits is 22680, while the sum is 37.

The square root of 26156971 is about 5114.3886242639. The cubic root of 26156971 is about 296.8445981943.

The spelling of 26156971 in words is "twenty-six million, one hundred fifty-six thousand, nine hundred seventy-one".