211150913 has 4 divisors (see below), whose sum is σ = 211311360. Its totient is φ = 210990468.

The previous prime is 211150873. The next prime is 211150937. The reversal of 211150913 is 319051112.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 211150913 - 2²² = 206956609 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (211150813) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 78233 + ... + 80886.

It is an arithmetic number, because the mean of its divisors is an integer number (52827840).

Almost surely, 2^211150913 is an apocalyptic number.

It is an amenable number.

211150913 is a deficient number, since it is larger than the sum of its proper divisors (160447).

211150913 is a wasteful number, since it uses less digits than its factorization.

211150913 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 160446.

The product of its (nonzero) digits is 270, while the sum is 23.

The square root of 211150913 is about 14531.0327575159. The cubic root of 211150913 is about 595.4760806129.

The spelling of 211150913 in words is "two hundred eleven million, one hundred fifty thousand, nine hundred thirteen".