2106306207 has 8 divisors (see below), whose sum is σ = 3120453680. Its totient is φ = 1404204120.

The previous prime is 2106306187. The next prime is 2106306211. The reversal of 2106306207 is 7026036012.

It is a happy number.

2106306207 is a `hidden beast` number, since 2 + 1 + 0 + 6 + 30 + 620 + 7 = 666.

It is not a de Polignac number, because 2106306207 - 2⁶ = 2106306143 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27), and also a Moran number because the ratio is a prime number: 78011341 = 2106306207 / (2 + 1 + 0 + 6 + 3 + 0 + 6 + 2 + 0 + 7).

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2106306227) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 39005644 + ... + 39005697.

It is an arithmetic number, because the mean of its divisors is an integer number (390056710).

Almost surely, 2^2106306207 is an apocalyptic number.

2106306207 is a gapful number since it is divisible by the number (27) formed by its first and last digit.

2106306207 is a deficient number, since it is larger than the sum of its proper divisors (1014147473).

2106306207 is an equidigital number, since it uses as much as digits as its factorization.

2106306207 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 78011350 (or 78011344 counting only the distinct ones).

The product of its (nonzero) digits is 3024, while the sum is 27.

The square root of 2106306207 is about 45894.5117307070. The cubic root of 2106306207 is about 1281.8597248604.

The spelling of 2106306207 in words is "two billion, one hundred six million, three hundred six thousand, two hundred seven".