2138117270 has 16 divisors (see below), whose sum is σ = 3850830720. Its totient is φ = 854753664.

The previous prime is 2138117269. The next prime is 2138117281. The reversal of 2138117270 is 727118312.

It is a congruent number.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 43187 + ... + 78366.

It is an arithmetic number, because the mean of its divisors is an integer number (240676920).

Almost surely, 2^2138117270 is an apocalyptic number.

2138117270 is a deficient number, since it is larger than the sum of its proper divisors (1712713450).

2138117270 is a wasteful number, since it uses less digits than its factorization.

2138117270 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 123319.

The product of its (nonzero) digits is 4704, while the sum is 32.

The square root of 2138117270 is about 46239.7801681626. The cubic root of 2138117270 is about 1288.2807194379.

The spelling of 2138117270 in words is "two billion, one hundred thirty-eight million, one hundred seventeen thousand, two hundred seventy".