211124749 has 8 divisors (see below), whose sum is σ = 230542848. Its totient is φ = 191744160.

The previous prime is 211124743. The next prime is 211124777. The reversal of 211124749 is 947421112.

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 211124749 - 2³ = 211124741 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 211124749.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (211124741) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3129 + ... + 20785.

It is an arithmetic number, because the mean of its divisors is an integer number (28817856).

Almost surely, 2^211124749 is an apocalyptic number.

It is an amenable number.

211124749 is a deficient number, since it is larger than the sum of its proper divisors (19418099).

211124749 is a wasteful number, since it uses less digits than its factorization.

211124749 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18755.

The product of its digits is 4032, while the sum is 31.

The square root of 211124749 is about 14530.1324494996. The cubic root of 211124749 is about 595.4514841769.

The spelling of 211124749 in words is "two hundred eleven million, one hundred twenty-four thousand, seven hundred forty-nine".