213958 has 4 divisors (see below), whose sum is σ = 320940. Its totient is φ = 106978.

The previous prime is 213953. The next prime is 213973. The reversal of 213958 is 859312.

213958 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 is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (213953) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 53488 + ... + 53491.

It is an arithmetic number, because the mean of its divisors is an integer number (80235).

2²¹³⁹⁵⁸ is an apocalyptic number.

213958 is a deficient number, since it is larger than the sum of its proper divisors (106982).

213958 is a wasteful number, since it uses less digits than its factorization.

213958 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 106981.

The product of its digits is 2160, while the sum is 28.

The square root of 213958 is about 462.5559425626. Note that the first 3 decimals coincide. The cubic root of 213958 is about 59.8103269600.

It can be divided in two parts, 2139 and 58, that added together give a cube (2197 = 13³).

The spelling of 213958 in words is "two hundred thirteen thousand, nine hundred fifty-eight".