108254021 has 2 divisors, whose sum is σ = 108254022. Its totient is φ = 108254020.

The previous prime is 108253997. The next prime is 108254023. The reversal of 108254021 is 120452801.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 60450625 + 47803396 = 7775^2 + 6914^2 .

It is a cyclic number.

It is not a de Polignac number, because 108254021 - 2¹⁴ = 108237637 is a prime.

Together with 108254023, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (108254023) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 54127010 + 54127011.

It is an arithmetic number, because the mean of its divisors is an integer number (54127011).

Almost surely, 2^108254021 is an apocalyptic number.

It is an amenable number.

108254021 is a deficient number, since it is larger than the sum of its proper divisors (1).

108254021 is an equidigital number, since it uses as much as digits as its factorization.

108254021 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 640, while the sum is 23.

The square root of 108254021 is about 10404.5192584761. The cubic root of 108254021 is about 476.5933873257.

The spelling of 108254021 in words is "one hundred eight million, two hundred fifty-four thousand, twenty-one".