211147950 has 192 divisors, whose sum is σ = 612460800. Its totient is φ = 47692800.

The previous prime is 211147943. The next prime is 211147967. The reversal of 211147950 is 59741112.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 1518981 + ... + 1519119.

It is an arithmetic number, because the mean of its divisors is an integer number (3189900).

Almost surely, 2^211147950 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 211147950, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (306230400).

211147950 is an abundant number, since it is smaller than the sum of its proper divisors (401312850).

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

211147950 is a wasteful number, since it uses less digits than its factorization.

211147950 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 227 (or 222 counting only the distinct ones).

The product of its (nonzero) digits is 2520, while the sum is 30.

The square root of 211147950 is about 14530.9308029458. The cubic root of 211147950 is about 595.4732952372.

The spelling of 211147950 in words is "two hundred eleven million, one hundred forty-seven thousand, nine hundred fifty".