211003245 has 32 divisors (see below), whose sum is σ = 375863040. Its totient is φ = 112311360.

The previous prime is 211003223. The next prime is 211003259. The reversal of 211003245 is 542300112.

It is not a de Polignac number, because 211003245 - 2¹⁷ = 210872173 is a prime.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 83947 + ... + 86423.

It is an arithmetic number, because the mean of its divisors is an integer number (11745720).

Almost surely, 2^211003245 is an apocalyptic number.

It is an amenable number.

211003245 is a deficient number, since it is larger than the sum of its proper divisors (164859795).

211003245 is a wasteful number, since it uses less digits than its factorization.

211003245 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3122 (or 3116 counting only the distinct ones).

The product of its (nonzero) digits is 240, while the sum is 18.

The square root of 211003245 is about 14525.9507434109. The cubic root of 211003245 is about 595.3372332089.

Adding to 211003245 its reverse (542300112), we get a palindrome (753303357).

The spelling of 211003245 in words is "two hundred eleven million, three thousand, two hundred forty-five".