212364245 has 16 divisors (see below), whose sum is σ = 266976000. Its totient is φ = 161947968.

The previous prime is 212364239. The next prime is 212364259. The reversal of 212364245 is 542463212.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-212364245 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (29).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2186 + ... + 20724.

It is an arithmetic number, because the mean of its divisors is an integer number (16686000).

Almost surely, 2^212364245 is an apocalyptic number.

It is an amenable number.

212364245 is a deficient number, since it is larger than the sum of its proper divisors (54611755).

212364245 is a wasteful number, since it uses less digits than its factorization.

212364245 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18652.

The product of its digits is 11520, while the sum is 29.

The square root of 212364245 is about 14572.7226351152. The cubic root of 212364245 is about 596.6144933556.

The spelling of 212364245 in words is "two hundred twelve million, three hundred sixty-four thousand, two hundred forty-five".