212493 has 8 divisors (see below), whose sum is σ = 285568. Its totient is φ = 140544.

The previous prime is 212479. The next prime is 212501. The reversal of 212493 is 394212.

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

It is not a de Polignac number, because 212493 - 2⁵ = 212461 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (212423) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 396 + ... + 762.

It is an arithmetic number, because the mean of its divisors is an integer number (35696).

2²¹²⁴⁹³ is an apocalyptic number.

It is an amenable number.

212493 is a deficient number, since it is larger than the sum of its proper divisors (73075).

212493 is a wasteful number, since it uses less digits than its factorization.

212493 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 563.

The product of its digits is 432, while the sum is 21.

The square root of 212493 is about 460.9696302361. The cubic root of 212493 is about 59.6735043435.

The spelling of 212493 in words is "two hundred twelve thousand, four hundred ninety-three".