106401109 has 4 divisors (see below), whose sum is σ = 108996300. Its totient is φ = 103805920.

The previous prime is 106401107. The next prime is 106401149. The reversal of 106401109 is 901104601.

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 39652209 + 66748900 = 6297^2 + 8170^2 .

It is a cyclic number.

It is not a de Polignac number, because 106401109 - 2¹ = 106401107 is a prime.

It is a super-2 number, since 2×106401109² = 22642391992859762, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 106401109.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (106401107) 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, 1297534 + ... + 1297615.

It is an arithmetic number, because the mean of its divisors is an integer number (27249075).

Almost surely, 2^106401109 is an apocalyptic number.

It is an amenable number.

106401109 is a deficient number, since it is larger than the sum of its proper divisors (2595191).

106401109 is an equidigital number, since it uses as much as digits as its factorization.

106401109 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2595190.

The product of its (nonzero) digits is 216, while the sum is 22.

The square root of 106401109 is about 10315.0913229113. The cubic root of 106401109 is about 473.8585467518.

The spelling of 106401109 in words is "one hundred six million, four hundred one thousand, one hundred nine".