211000045 has 8 divisors (see below), whose sum is σ = 264208896. Its totient is φ = 161460816.

The previous prime is 211000033. The next prime is 211000051. The reversal of 211000045 is 540000112.

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 211000045 - 2¹⁹ = 210475757 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 210999989 and 211000034.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 917277 + ... + 917506.

It is an arithmetic number, because the mean of its divisors is an integer number (33026112).

Almost surely, 2^211000045 is an apocalyptic number.

It is an amenable number.

211000045 is a deficient number, since it is larger than the sum of its proper divisors (53208851).

211000045 is a wasteful number, since it uses less digits than its factorization.

211000045 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1834811.

The product of its (nonzero) digits is 40, while the sum is 13.

The square root of 211000045 is about 14525.8405952977. The cubic root of 211000045 is about 595.3342236362.

Adding to 211000045 its reverse (540000112), we get a palindrome (751000157).

The spelling of 211000045 in words is "two hundred eleven million, forty-five", and thus it is an aban number.