106073021 has 2 divisors, whose sum is σ = 106073022. Its totient is φ = 106073020.

The previous prime is 106073003. The next prime is 106073057. The reversal of 106073021 is 120370601.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 87703225 + 18369796 = 9365^2 + 4286^2 .

It is a cyclic number.

It is not a de Polignac number, because 106073021 - 2¹⁴ = 106056637 is a prime.

It is a super-2 number, since 2×106073021² = 22502971568132882, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 106072984 and 106073002.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (106073921) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 53036510 + 53036511.

It is an arithmetic number, because the mean of its divisors is an integer number (53036511).

Almost surely, 2^106073021 is an apocalyptic number.

It is an amenable number.

106073021 is a deficient number, since it is larger than the sum of its proper divisors (1).

106073021 is an equidigital number, since it uses as much as digits as its factorization.

106073021 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 252, while the sum is 20.

The square root of 106073021 is about 10299.1757437185. The cubic root of 106073021 is about 473.3709974107.

The spelling of 106073021 in words is "one hundred six million, seventy-three thousand, twenty-one".