213071193 has 6 divisors (see below), whose sum is σ = 307769514. Its totient is φ = 142047456.

The previous prime is 213071191. The next prime is 213071203. The reversal of 213071193 is 391170312.

It can be written as a sum of positive squares in only one way, i.e., 180956304 + 32114889 = 13452^2 + 5667^2 .

It is not a de Polignac number, because 213071193 - 2¹ = 213071191 is a prime.

It is not an unprimeable number, because it can be changed into a prime (213071191) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 11837280 + ... + 11837297.

It is an arithmetic number, because the mean of its divisors is an integer number (51294919).

Almost surely, 2^213071193 is an apocalyptic number.

It is an amenable number.

213071193 is a deficient number, since it is larger than the sum of its proper divisors (94698321).

213071193 is a wasteful number, since it uses less digits than its factorization.

213071193 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23674583 (or 23674580 counting only the distinct ones).

The product of its (nonzero) digits is 1134, while the sum is 27.

The square root of 213071193 is about 14596.9583475462. The cubic root of 213071193 is about 597.2757915333.

It can be divided in two parts, 21307 and 1193, that added together give a square (22500 = 150²).

The spelling of 213071193 in words is "two hundred thirteen million, seventy-one thousand, one hundred ninety-three".