2170609539 has 16 divisors (see below), whose sum is σ = 3323278080. Its totient is φ = 1234467360.

The previous prime is 2170609531. The next prime is 2170609547. The reversal of 2170609539 is 9359060712.

It is an interprime number because it is at equal distance from previous prime (2170609531) and next prime (2170609547).

It is not a de Polignac number, because 2170609539 - 2³ = 2170609531 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 2170609539.

It is not an unprimeable number, because it can be changed into a prime (2170609531) 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, 240504 + ... + 249365.

It is an arithmetic number, because the mean of its divisors is an integer number (207704880).

Almost surely, 2^2170609539 is an apocalyptic number.

2170609539 is a deficient number, since it is larger than the sum of its proper divisors (1152668541).

2170609539 is a wasteful number, since it uses less digits than its factorization.

2170609539 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 490090.

The product of its (nonzero) digits is 102060, while the sum is 42.

The square root of 2170609539 is about 46589.8008044679. The cubic root of 2170609539 is about 1294.7737988855.

The spelling of 2170609539 in words is "two billion, one hundred seventy million, six hundred nine thousand, five hundred thirty-nine".