211484091 has 16 divisors (see below), whose sum is σ = 347051264. Its totient is φ = 111551904.

The previous prime is 211484071. The next prime is 211484113. The reversal of 211484091 is 190484112.

It is not a de Polignac number, because 211484091 - 2⁵ = 211484059 is a prime.

It is not an unprimeable number, because it can be changed into a prime (211484071) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 387061 + ... + 387606.

It is an arithmetic number, because the mean of its divisors is an integer number (21690704).

Almost surely, 2^211484091 is an apocalyptic number.

211484091 is a gapful number since it is divisible by the number (21) formed by its first and last digit.

211484091 is a deficient number, since it is larger than the sum of its proper divisors (135567173).

211484091 is a wasteful number, since it uses less digits than its factorization.

211484091 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 774690.

The product of its (nonzero) digits is 2304, while the sum is 30.

The square root of 211484091 is about 14542.4925992761. The cubic root of 211484091 is about 595.7891193864.

The spelling of 211484091 in words is "two hundred eleven million, four hundred eighty-four thousand, ninety-one".