212900649 has 8 divisors (see below), whose sum is σ = 305703552. Its totient is φ = 131015760.

The previous prime is 212900609. The next prime is 212900663. The reversal of 212900649 is 946009212.

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

It is not a de Polignac number, because 212900649 - 2⁸ = 212900393 is a prime.

It is not an unprimeable number, because it can be changed into a prime (212900609) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2729457 + ... + 2729534.

It is an arithmetic number, because the mean of its divisors is an integer number (38212944).

Almost surely, 2^212900649 is an apocalyptic number.

It is an amenable number.

212900649 is a deficient number, since it is larger than the sum of its proper divisors (92802903).

212900649 is a wasteful number, since it uses less digits than its factorization.

212900649 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5459007.

The product of its (nonzero) digits is 7776, while the sum is 33.

The square root of 212900649 is about 14591.1154131547. The cubic root of 212900649 is about 597.1163941190.

The spelling of 212900649 in words is "two hundred twelve million, nine hundred thousand, six hundred forty-nine".