92154221 has 2 divisors, whose sum is σ = 92154222. Its totient is φ = 92154220.

The previous prime is 92154197. The next prime is 92154241. The reversal of 92154221 is 12245129.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 81198121 + 10956100 = 9011^2 + 3310^2 .

It is a cyclic number.

It is not a de Polignac number, because 92154221 - 2⁶ = 92154157 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (92154241) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 46077110 + 46077111.

It is an arithmetic number, because the mean of its divisors is an integer number (46077111).

Almost surely, 2^92154221 is an apocalyptic number.

It is an amenable number.

92154221 is a deficient number, since it is larger than the sum of its proper divisors (1).

92154221 is an equidigital number, since it uses as much as digits as its factorization.

92154221 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1440, while the sum is 26.

The square root of 92154221 is about 9599.6990056980. The cubic root of 92154221 is about 451.6878522641.

The spelling of 92154221 in words is "ninety-two million, one hundred fifty-four thousand, two hundred twenty-one".