106499947189 has 4 divisors (see below), whose sum is σ = 106507910124. Its totient is φ = 106491984256.

The previous prime is 106499947157. The next prime is 106499947219. The reversal of 106499947189 is 981749994601.

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 5038586289 + 101461360900 = 70983^2 + 318530^2 .

It is a cyclic number.

It is not a de Polignac number, because 106499947189 - 2⁵ = 106499947157 is a prime.

It is a super-2 number, since 2×106499947189² (a number of 23 digits) contains 22 as substring.

It is a Smith number, since the sum of its digits (67) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (106499947139) 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, 3961372 + ... + 3988165.

It is an arithmetic number, because the mean of its divisors is an integer number (26626977531).

Almost surely, 2^106499947189 is an apocalyptic number.

It is an amenable number.

106499947189 is a deficient number, since it is larger than the sum of its proper divisors (7962935).

106499947189 is an equidigital number, since it uses as much as digits as its factorization.

106499947189 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7962934.

The product of its (nonzero) digits is 35271936, while the sum is 67.

The spelling of 106499947189 in words is "one hundred six billion, four hundred ninety-nine million, nine hundred forty-seven thousand, one hundred eighty-nine".