212941493 has 4 divisors (see below), whose sum is σ = 224148960. Its totient is φ = 201734028.

The previous prime is 212941457. The next prime is 212941501. The reversal of 212941493 is 394149212.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-212941493 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 (212941453) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5603705 + ... + 5603742.

It is an arithmetic number, because the mean of its divisors is an integer number (56037240).

Almost surely, 2^212941493 is an apocalyptic number.

It is an amenable number.

212941493 is a deficient number, since it is larger than the sum of its proper divisors (11207467).

212941493 is a wasteful number, since it uses less digits than its factorization.

212941493 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11207466.

The product of its digits is 15552, while the sum is 35.

The square root of 212941493 is about 14592.5149648715. The cubic root of 212941493 is about 597.1545763457.

The spelling of 212941493 in words is "two hundred twelve million, nine hundred forty-one thousand, four hundred ninety-three".