211153953 has 8 divisors (see below), whose sum is σ = 281641600. Its totient is φ = 140717808.

The previous prime is 211153937. The next prime is 211153963. The reversal of 211153953 is 359351112.

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

It is not a de Polignac number, because 211153953 - 2⁴ = 211153937 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 211153953.

It is not an unprimeable number, because it can be changed into a prime (211153903) 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, 1993 + ... + 20646.

It is an arithmetic number, because the mean of its divisors is an integer number (35205200).

Almost surely, 2^211153953 is an apocalyptic number.

It is an amenable number.

211153953 is a deficient number, since it is larger than the sum of its proper divisors (70487647).

211153953 is a wasteful number, since it uses less digits than its factorization.

211153953 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25751.

The product of its digits is 4050, while the sum is 30.

The square root of 211153953 is about 14531.1373608538. The cubic root of 211153953 is about 595.4789383456.

The spelling of 211153953 in words is "two hundred eleven million, one hundred fifty-three thousand, nine hundred fifty-three".