2145190 has 8 divisors (see below), whose sum is σ = 3861360. Its totient is φ = 858072.

The previous prime is 2145173. The next prime is 2145191. The reversal of 2145190 is 915412.

2145190 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a super-2 number, since 2×2145190² = 9203680272200, which contains 22 as substring.

It is an Ulam number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2145191) 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 3 ways as a sum of consecutive naturals, for example, 107250 + ... + 107269.

It is an arithmetic number, because the mean of its divisors is an integer number (482670).

2^2145190 is an apocalyptic number.

2145190 is a deficient number, since it is larger than the sum of its proper divisors (1716170).

2145190 is a wasteful number, since it uses less digits than its factorization.

2145190 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 214526.

The product of its (nonzero) digits is 360, while the sum is 22.

The square root of 2145190 is about 1464.6467150818. The cubic root of 2145190 is about 128.9699667679.

The spelling of 2145190 in words is "two million, one hundred forty-five thousand, one hundred ninety".