211225153 has 8 divisors (see below), whose sum is σ = 229105800. Its totient is φ = 193950720.

The previous prime is 211225151. The next prime is 211225199. The reversal of 211225153 is 351522112.

It can be written as a sum of positive squares in 4 ways, for example, as 40870449 + 170354704 = 6393^2 + 13052^2 .

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 211225153 - 2¹ = 211225151 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (211225151) 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, 150828 + ... + 152221.

It is an arithmetic number, because the mean of its divisors is an integer number (28638225).

Almost surely, 2^211225153 is an apocalyptic number.

It is an amenable number.

211225153 is a deficient number, since it is larger than the sum of its proper divisors (17880647).

211225153 is a wasteful number, since it uses less digits than its factorization.

211225153 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 303107.

The product of its digits is 600, while the sum is 22.

The square root of 211225153 is about 14533.5870658279. The cubic root of 211225153 is about 595.5458616105.

Adding to 211225153 its reverse (351522112), we get a palindrome (562747265).

The spelling of 211225153 in words is "two hundred eleven million, two hundred twenty-five thousand, one hundred fifty-three".