2165154 has 16 divisors (see below), whose sum is σ = 4585248. Its totient is φ = 679232.

The previous prime is 2165147. The next prime is 2165159. The reversal of 2165154 is 4515612.

It is a super-3 number, since 3×2165154³ = 30450023330967216792, which contains 333 as substring.

It is not an unprimeable number, because it can be changed into a prime (2165159) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 10512 + ... + 10715.

It is an arithmetic number, because the mean of its divisors is an integer number (286578).

2^2165154 is an apocalyptic number.

2165154 is an abundant number, since it is smaller than the sum of its proper divisors (2420094).

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

2165154 is a wasteful number, since it uses less digits than its factorization.

2165154 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21249.

The product of its digits is 1200, while the sum is 24.

The square root of 2165154 is about 1471.4462273559. The cubic root of 2165154 is about 129.3688141456.

The spelling of 2165154 in words is "two million, one hundred sixty-five thousand, one hundred fifty-four".