2171140007 has 4 divisors (see below), whose sum is σ = 2171465040. Its totient is φ = 2170814976.

The previous prime is 2171139977. The next prime is 2171140019. The reversal of 2171140007 is 7000411712.

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

It is a cyclic number.

It is not a de Polignac number, because 2171140007 - 2²⁶ = 2104031143 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2171149007) 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, 152282 + ... + 165927.

It is an arithmetic number, because the mean of its divisors is an integer number (542866260).

Almost surely, 2^2171140007 is an apocalyptic number.

2171140007 is a deficient number, since it is larger than the sum of its proper divisors (325033).

2171140007 is an equidigital number, since it uses as much as digits as its factorization.

2171140007 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 325032.

The product of its (nonzero) digits is 392, while the sum is 23.

The square root of 2171140007 is about 46595.4934194285. The cubic root of 2171140007 is about 1294.8792654394.

Adding to 2171140007 its reverse (7000411712), we get a palindrome (9171551719).

The spelling of 2171140007 in words is "two billion, one hundred seventy-one million, one hundred forty thousand, seven".