2163138 has 16 divisors (see below), whose sum is σ = 4345056. Its totient is φ = 717920.

The previous prime is 2163137. The next prime is 2163163. The reversal of 2163138 is 8313612.

It is not an unprimeable number, because it can be changed into a prime (2163137) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1045 + ... + 2327.

It is an arithmetic number, because the mean of its divisors is an integer number (271566).

2^2163138 is an apocalyptic number.

2163138 is an abundant number, since it is smaller than the sum of its proper divisors (2181918).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

2163138 is a wasteful number, since it uses less digits than its factorization.

2163138 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1569.

The product of its digits is 864, while the sum is 24.

The square root of 2163138 is about 1470.7610274956. The cubic root of 2163138 is about 129.3286494094.

The spelling of 2163138 in words is "two million, one hundred sixty-three thousand, one hundred thirty-eight".