2173015263 has 16 divisors (see below), whose sum is σ = 2910813696. Its totient is φ = 1441964160.

The previous prime is 2173015219. The next prime is 2173015283. The reversal of 2173015263 is 3625103712.

It is not a de Polignac number, because 2173015263 - 2²¹ = 2170918111 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 2173015263.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2173015283) 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, 636106 + ... + 639512.

It is an arithmetic number, because the mean of its divisors is an integer number (181925856).

Almost surely, 2^2173015263 is an apocalyptic number.

2173015263 is a deficient number, since it is larger than the sum of its proper divisors (737798433).

2173015263 is a wasteful number, since it uses less digits than its factorization.

2173015263 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4334.

The product of its (nonzero) digits is 7560, while the sum is 30.

The square root of 2173015263 is about 46615.6117947625. The cubic root of 2173015263 is about 1295.2519623231.

Adding to 2173015263 its reverse (3625103712), we get a palindrome (5798118975).

The spelling of 2173015263 in words is "two billion, one hundred seventy-three million, fifteen thousand, two hundred sixty-three".