2151044 has 24 divisors (see below), whose sum is σ = 4556160. Its totient is φ = 867456.

The previous prime is 2151031. The next prime is 2151073. The reversal of 2151044 is 4401512.

It is a Harshad number since it is a multiple of its sum of digits (17).

It is an unprimeable number.

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, 1784 + ... + 2735.

It is an arithmetic number, because the mean of its divisors is an integer number (189840).

2^2151044 is an apocalyptic number.

It is an amenable number.

2151044 is an abundant number, since it is smaller than the sum of its proper divisors (2405116).

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

2151044 is a wasteful number, since it uses less digits than its factorization.

2151044 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4547 (or 4545 counting only the distinct ones).

The product of its (nonzero) digits is 160, while the sum is 17.

The square root of 2151044 is about 1466.6437877003. The cubic root of 2151044 is about 129.0871754163.

Adding to 2151044 its reverse (4401512), we get a palindrome (6552556).

The spelling of 2151044 in words is "two million, one hundred fifty-one thousand, forty-four".