2128154 has 16 divisors (see below), whose sum is σ = 3701376. Its totient is φ = 898800.

The previous prime is 2128153. The next prime is 2128157. The reversal of 2128154 is 4518212.

It is not an unprimeable number, because it can be changed into a prime (2128153) 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, 77 + ... + 2064.

It is an arithmetic number, because the mean of its divisors is an integer number (231336).

2^2128154 is an apocalyptic number.

2128154 is a deficient number, since it is larger than the sum of its proper divisors (1573222).

2128154 is a wasteful number, since it uses less digits than its factorization.

2128154 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2221.

The product of its digits is 640, while the sum is 23.

The square root of 2128154 is about 1458.8193856677. The cubic root of 2128154 is about 128.6276545380.

The spelling of 2128154 in words is "two million, one hundred twenty-eight thousand, one hundred fifty-four".