212705049 has 8 divisors (see below), whose sum is σ = 285092352. Its totient is φ = 141060560.

The previous prime is 212705027. The next prime is 212705083. The reversal of 212705049 is 940507212.

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 212705049 - 2⁹ = 212704537 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (212705149) 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, 185034 + ... + 186179.

It is an arithmetic number, because the mean of its divisors is an integer number (35636544).

Almost surely, 2^212705049 is an apocalyptic number.

It is an amenable number.

212705049 is a deficient number, since it is larger than the sum of its proper divisors (72387303).

212705049 is a wasteful number, since it uses less digits than its factorization.

212705049 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 371407.

The product of its (nonzero) digits is 5040, while the sum is 30.

The square root of 212705049 is about 14584.4111639792. The cubic root of 212705049 is about 596.9334735035.

The spelling of 212705049 in words is "two hundred twelve million, seven hundred five thousand, forty-nine".