106085021 has 4 divisors (see below), whose sum is σ = 121240032. Its totient is φ = 90930012.

The previous prime is 106085011. The next prime is 106085027. The reversal of 106085021 is 120580601.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 120580601 = 59 ⋅2043739.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-106085021 is a prime.

It is a super-2 number, since 2×106085021² = 22508063361140882, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (106085027) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7577495 + ... + 7577508.

It is an arithmetic number, because the mean of its divisors is an integer number (30310008).

Almost surely, 2^106085021 is an apocalyptic number.

It is an amenable number.

106085021 is a deficient number, since it is larger than the sum of its proper divisors (15155011).

106085021 is an equidigital number, since it uses as much as digits as its factorization.

106085021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15155010.

The product of its (nonzero) digits is 480, while the sum is 23.

The square root of 106085021 is about 10299.7582981350. The cubic root of 106085021 is about 473.3888474971.

The spelling of 106085021 in words is "one hundred six million, eighty-five thousand, twenty-one".