2187146 has 8 divisors (see below), whose sum is σ = 3533124. Its totient is φ = 1009440.

The previous prime is 2187121. The next prime is 2187149. The reversal of 2187146 is 6417812.

2187146 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 1661521 + 525625 = 1289^2 + 725^2 .

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

It is not an unprimeable number, because it can be changed into a prime (2187149) 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, 42035 + ... + 42086.

2^2187146 is an apocalyptic number.

2187146 is a gapful number since it is divisible by the number (26) formed by its first and last digit.

2187146 is a deficient number, since it is larger than the sum of its proper divisors (1345978).

2187146 is a wasteful number, since it uses less digits than its factorization.

2187146 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 84136.

The product of its digits is 2688, while the sum is 29.

The square root of 2187146 is about 1478.9002670904. The cubic root of 2187146 is about 129.8053497193.

The spelling of 2187146 in words is "two million, one hundred eighty-seven thousand, one hundred forty-six".