213874 has 4 divisors (see below), whose sum is σ = 320814. Its totient is φ = 106936.

The previous prime is 213859. The next prime is 213881. The reversal of 213874 is 478312.

213874 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., 189225 + 24649 = 435^2 + 157^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 53467 + ... + 53470.

2²¹³⁸⁷⁴ is an apocalyptic number.

213874 is a deficient number, since it is larger than the sum of its proper divisors (106940).

213874 is a wasteful number, since it uses less digits than its factorization.

213874 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 106939.

The product of its digits is 1344, while the sum is 25.

The square root of 213874 is about 462.4651338209. The cubic root of 213874 is about 59.8024987491.

The spelling of 213874 in words is "two hundred thirteen thousand, eight hundred seventy-four".