2145708807 has 16 divisors (see below), whose sum is σ = 3122797440. Its totient is φ = 1299693600.

The previous prime is 2145708797. The next prime is 2145708827. The reversal of 2145708807 is 7088075412.

It is not a de Polignac number, because 2145708807 - 2⁴ = 2145708791 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2145708827) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 43944 + ... + 78882.

It is an arithmetic number, because the mean of its divisors is an integer number (195174840).

Almost surely, 2^2145708807 is an apocalyptic number.

2145708807 is a deficient number, since it is larger than the sum of its proper divisors (977088633).

2145708807 is a wasteful number, since it uses less digits than its factorization.

2145708807 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 36814.

The product of its (nonzero) digits is 125440, while the sum is 42.

The square root of 2145708807 is about 46321.7962410786. The cubic root of 2145708807 is about 1289.8036291438.

The spelling of 2145708807 in words is "two billion, one hundred forty-five million, seven hundred eight thousand, eight hundred seven".