2154912 has 24 divisors (see below), whose sum is σ = 5656896. Its totient is φ = 718272.

The previous prime is 2154907. The next prime is 2154913. The reversal of 2154912 is 2194512.

It is a tau number, because it is divible by the number of its divisors (24).

It is a hoax number, since the sum of its digits (24) coincides with the sum of the digits of its distinct prime factors.

It is a Harshad number since it is a multiple of its sum of digits (24).

It is not an unprimeable number, because it can be changed into a prime (2154913) 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 3 ways as a sum of consecutive naturals, for example, 11128 + ... + 11319.

It is an arithmetic number, because the mean of its divisors is an integer number (235704).

2^2154912 is an apocalyptic number.

It is an amenable number.

2154912 is an abundant number, since it is smaller than the sum of its proper divisors (3501984).

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

2154912 is a wasteful number, since it uses less digits than its factorization.

2154912 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22460 (or 22452 counting only the distinct ones).

The product of its digits is 720, while the sum is 24.

The square root of 2154912 is about 1467.9618523654. The cubic root of 2154912 is about 129.1645037908.

The spelling of 2154912 in words is "two million, one hundred fifty-four thousand, nine hundred twelve".