2167952138 has 8 divisors (see below), whose sum is σ = 3547558080. Its totient is φ = 985432780.

The previous prime is 2167952131. The next prime is 2167952153. The reversal of 2167952138 is 8312597612.

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

It is not an unprimeable number, because it can be changed into a prime (2167952131) 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 3 ways as a sum of consecutive naturals, for example, 49271618 + ... + 49271661.

It is an arithmetic number, because the mean of its divisors is an integer number (443444760).

Almost surely, 2^2167952138 is an apocalyptic number.

2167952138 is a deficient number, since it is larger than the sum of its proper divisors (1379605942).

2167952138 is a wasteful number, since it uses less digits than its factorization.

2167952138 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 98543292.

The product of its digits is 181440, while the sum is 44.

The square root of 2167952138 is about 46561.2729422210. The cubic root of 2167952138 is about 1294.2452010877.

The spelling of 2167952138 in words is "two billion, one hundred sixty-seven million, nine hundred fifty-two thousand, one hundred thirty-eight".