106172213 has 16 divisors (see below), whose sum is σ = 123192960. Its totient is φ = 89626176.

The previous prime is 106172207. The next prime is 106172249. The reversal of 106172213 is 312271601.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-106172213 is a prime.

It is a super-2 number, since 2×106172213² = 22545077626634738, 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 (106172263) 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 in 15 ways as a sum of consecutive naturals, for example, 172895 + ... + 173507.

It is an arithmetic number, because the mean of its divisors is an integer number (7699560).

Almost surely, 2^106172213 is an apocalyptic number.

It is an amenable number.

106172213 is a deficient number, since it is larger than the sum of its proper divisors (17020747).

106172213 is a wasteful number, since it uses less digits than its factorization.

106172213 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 956.

The product of its (nonzero) digits is 504, while the sum is 23.

The square root of 106172213 is about 10303.9901494518. The cubic root of 106172213 is about 473.5185058186.

The spelling of 106172213 in words is "one hundred six million, one hundred seventy-two thousand, two hundred thirteen".