2190051 has 16 divisors (see below), whose sum is σ = 3357600. Its totient is φ = 1409184.

The previous prime is 2190047. The next prime is 2190077. The reversal of 2190051 is 1500912.

2190051 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 2190051 - 2² = 2190047 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2190031) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 616 + ... + 2181.

It is an arithmetic number, because the mean of its divisors is an integer number (209850).

2^2190051 is an apocalyptic number.

2190051 is a deficient number, since it is larger than the sum of its proper divisors (1167549).

2190051 is a wasteful number, since it uses less digits than its factorization.

2190051 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2835 (or 2829 counting only the distinct ones).

The product of its (nonzero) digits is 90, while the sum is 18.

The square root of 2190051 is about 1479.8820898977. The cubic root of 2190051 is about 129.8627940957.

Adding to 2190051 its reverse (1500912), we get a palindrome (3690963).

The spelling of 2190051 in words is "two million, one hundred ninety thousand, fifty-one".