92136221 has 2 divisors, whose sum is σ = 92136222. Its totient is φ = 92136220.

The previous prime is 92136211. The next prime is 92136223. The reversal of 92136221 is 12263129.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 74200996 + 17935225 = 8614^2 + 4235^2 .

It is an emirp because it is prime and its reverse (12263129) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 92136221 - 2¹⁴ = 92119837 is a prime.

It is a Sophie Germain prime.

Together with 92136223, it forms a pair of twin primes.

It is a Chen prime.

It is a Curzon number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (92136223) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 46068110 + 46068111.

It is an arithmetic number, because the mean of its divisors is an integer number (46068111).

Almost surely, 2^92136221 is an apocalyptic number.

It is an amenable number.

92136221 is a deficient number, since it is larger than the sum of its proper divisors (1).

92136221 is an equidigital number, since it uses as much as digits as its factorization.

92136221 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1296, while the sum is 26.

The square root of 92136221 is about 9598.7614305180. The cubic root of 92136221 is about 451.6584417439.

The spelling of 92136221 in words is "ninety-two million, one hundred thirty-six thousand, two hundred twenty-one".