2172707147 has 8 divisors (see below), whose sum is σ = 2340208416. Its totient is φ = 2005258752.

The previous prime is 2172707113. The next prime is 2172707149. The reversal of 2172707147 is 7417072712.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 2172707147 - 2²⁶ = 2105598283 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 2172707147.

It is not an unprimeable number, because it can be changed into a prime (2172707149) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 128363 + ... + 144299.

It is an arithmetic number, because the mean of its divisors is an integer number (292526052).

Almost surely, 2^2172707147 is an apocalyptic number.

2172707147 is a deficient number, since it is larger than the sum of its proper divisors (167501269).

2172707147 is a wasteful number, since it uses less digits than its factorization.

2172707147 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26437.

The product of its (nonzero) digits is 38416, while the sum is 38.

The square root of 2172707147 is about 46612.3068191224. The cubic root of 2172707147 is about 1295.1907406765.

Adding to 2172707147 its reverse (7417072712), we get a palindrome (9589779859).

The spelling of 2172707147 in words is "two billion, one hundred seventy-two million, seven hundred seven thousand, one hundred forty-seven".