211313045 has 16 divisors (see below), whose sum is σ = 257402880. Its totient is φ = 166516224.

The previous prime is 211313021. The next prime is 211313083. The reversal of 211313045 is 540313112.

It is a cyclic number.

It is not a de Polignac number, because 211313045 - 2²² = 207118741 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 15 ways as a sum of consecutive naturals, for example, 115004 + ... + 116826.

It is an arithmetic number, because the mean of its divisors is an integer number (16087680).

Almost surely, 2^211313045 is an apocalyptic number.

It is an amenable number.

211313045 is a deficient number, since it is larger than the sum of its proper divisors (46089835).

211313045 is a wasteful number, since it uses less digits than its factorization.

211313045 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2164.

The product of its (nonzero) digits is 360, while the sum is 20.

The square root of 211313045 is about 14536.6105058917. The cubic root of 211313045 is about 595.6284535077.

Adding to 211313045 its reverse (540313112), we get a palindrome (751626157).

The spelling of 211313045 in words is "two hundred eleven million, three hundred thirteen thousand, forty-five".