106533421 has 2 divisors, whose sum is σ = 106533422. Its totient is φ = 106533420.

The previous prime is 106533419. The next prime is 106533431. The reversal of 106533421 is 124335601.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 94381225 + 12152196 = 9715^2 + 3486^2 .

It is a cyclic number.

It is not a de Polignac number, because 106533421 - 2¹ = 106533419 is a prime.

It is a super-2 number, since 2×106533421² = 22698739579926482, which contains 22 as substring.

Together with 106533419, it forms a pair of twin primes.

It is equal to p_6115624 and since 106533421 and 6115624 have the same sum of digits, it is a Honaker prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (106533431) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 53266710 + 53266711.

It is an arithmetic number, because the mean of its divisors is an integer number (53266711).

Almost surely, 2^106533421 is an apocalyptic number.

It is an amenable number.

106533421 is a deficient number, since it is larger than the sum of its proper divisors (1).

106533421 is an equidigital number, since it uses as much as digits as its factorization.

106533421 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2160, while the sum is 25.

The square root of 106533421 is about 10321.5028460007. The cubic root of 106533421 is about 474.0548830561.

The spelling of 106533421 in words is "one hundred six million, five hundred thirty-three thousand, four hundred twenty-one".