106216949 has 4 divisors (see below), whose sum is σ = 107157036. Its totient is φ = 105276864.

The previous prime is 106216931. The next prime is 106216951. The reversal of 106216949 is 949612601.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 8305924 + 97911025 = 2882^2 + 9895^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-106216949 is a prime.

It is a super-2 number, since 2×106216949² = 22564080509737202, which contains 22 as substring.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (106276949) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 469874 + ... + 470099.

It is an arithmetic number, because the mean of its divisors is an integer number (26789259).

Almost surely, 2^106216949 is an apocalyptic number.

It is an amenable number.

106216949 is a deficient number, since it is larger than the sum of its proper divisors (940087).

106216949 is an equidigital number, since it uses as much as digits as its factorization.

106216949 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 940086.

The product of its (nonzero) digits is 23328, while the sum is 38.

The square root of 106216949 is about 10306.1607303593. The cubic root of 106216949 is about 473.5850026567.

The spelling of 106216949 in words is "one hundred six million, two hundred sixteen thousand, nine hundred forty-nine".