26820151 has 2 divisors, whose sum is σ = 26820152. Its totient is φ = 26820150.

The previous prime is 26820137. The next prime is 26820163. The reversal of 26820151 is 15102862.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 26820151 - 2⁵ = 26820119 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (26820121) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 13410075 + 13410076.

It is an arithmetic number, because the mean of its divisors is an integer number (13410076).

Almost surely, 2^26820151 is an apocalyptic number.

26820151 is a deficient number, since it is larger than the sum of its proper divisors (1).

26820151 is an equidigital number, since it uses as much as digits as its factorization.

26820151 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 960, while the sum is 25.

The square root of 26820151 is about 5178.8175291277. The cubic root of 26820151 is about 299.3324080981.

The spelling of 26820151 in words is "twenty-six million, eight hundred twenty thousand, one hundred fifty-one".