211053045 has 128 divisors (see below), whose sum is σ = 442368000. Its totient is φ = 85349376.

The previous prime is 211053043. The next prime is 211053047. The reversal of 211053045 is 540350112.

It is an interprime number because it is at equal distance from previous prime (211053043) and next prime (211053047).

It is not a de Polignac number, because 211053045 - 2¹ = 211053043 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (211053043) by changing a digit.

It is a polite number, since it can be written in 127 ways as a sum of consecutive naturals, for example, 1661772 + ... + 1661898.

It is an arithmetic number, because the mean of its divisors is an integer number (3456000).

Almost surely, 2^211053045 is an apocalyptic number.

It is an amenable number.

211053045 is an abundant number, since it is smaller than the sum of its proper divisors (231314955).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

211053045 is a wasteful number, since it uses less digits than its factorization.

211053045 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 192 (or 178 counting only the distinct ones).

The product of its (nonzero) digits is 600, while the sum is 21.

The square root of 211053045 is about 14527.6648157920. The cubic root of 211053045 is about 595.3840657620.

It can be divided in two parts, 2110 and 53045, that added together give a palindrome (55155).

The spelling of 211053045 in words is "two hundred eleven million, fifty-three thousand, forty-five".