106621106 has 4 divisors (see below), whose sum is σ = 159931662. Its totient is φ = 53310552.

The previous prime is 106621091. The next prime is 106621129. The reversal of 106621106 is 601126601.

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

It can be written as a sum of positive squares in only one way, i.e., 63600625 + 43020481 = 7975^2 + 6559^2 .

It is a super-2 number, since 2×106621106² = 22736120489326472, which contains 22 as substring.

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 26655275 + ... + 26655278.

Almost surely, 2^106621106 is an apocalyptic number.

106621106 is a deficient number, since it is larger than the sum of its proper divisors (53310556).

106621106 is an equidigital number, since it uses as much as digits as its factorization.

106621106 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 53310555.

The product of its (nonzero) digits is 432, while the sum is 23.

The square root of 106621106 is about 10325.7496580152. The cubic root of 106621106 is about 474.1849083035.

Adding to 106621106 its reverse (601126601), we get a palindrome (707747707).

The spelling of 106621106 in words is "one hundred six million, six hundred twenty-one thousand, one hundred six".