212145343 has 8 divisors (see below), whose sum is σ = 213699200. Its totient is φ = 210596760.

The previous prime is 212145337. The next prime is 212145361. The reversal of 212145343 is 343541212.

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

It is a cyclic number.

It is not a de Polignac number, because 212145343 - 2¹³ = 212137151 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 (212145443) 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, 112696 + ... + 114562.

It is an arithmetic number, because the mean of its divisors is an integer number (26712400).

Almost surely, 2^212145343 is an apocalyptic number.

212145343 is a deficient number, since it is larger than the sum of its proper divisors (1553857).

212145343 is a wasteful number, since it uses less digits than its factorization.

212145343 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2637.

The product of its digits is 2880, while the sum is 25.

The square root of 212145343 is about 14565.2100225160. The cubic root of 212145343 is about 596.4094290095.

Adding to 212145343 its reverse (343541212), we get a palindrome (555686555).

The spelling of 212145343 in words is "two hundred twelve million, one hundred forty-five thousand, three hundred forty-three".