2187058 has 4 divisors (see below), whose sum is σ = 3280590. Its totient is φ = 1093528.

The previous prime is 2187049. The next prime is 2187061. The reversal of 2187058 is 8507812.

2187058 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 2152089 + 34969 = 1467^2 + 187^2 .

It is a Smith number, since the sum of its digits (31) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is an alternating number because its digits alternate between even and odd.

It is an unprimeable number.

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 as a sum of consecutive naturals, namely, 546763 + ... + 546766.

2^2187058 is an apocalyptic number.

2187058 is a deficient number, since it is larger than the sum of its proper divisors (1093532).

2187058 is a wasteful number, since it uses less digits than its factorization.

2187058 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1093531.

The product of its (nonzero) digits is 4480, while the sum is 31.

The square root of 2187058 is about 1478.8705149539. The cubic root of 2187058 is about 129.8036087863.

The spelling of 2187058 in words is "two million, one hundred eighty-seven thousand, fifty-eight".