187320212 has 24 divisors (see below), whose sum is σ = 355170816. Its totient is φ = 86099328.

The previous prime is 187320163. The next prime is 187320253. The reversal of 187320212 is 212023781.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 29108 + ... + 34955.

It is an arithmetic number, because the mean of its divisors is an integer number (14798784).

Almost surely, 2^187320212 is an apocalyptic number.

It is an amenable number.

187320212 is a deficient number, since it is larger than the sum of its proper divisors (167850604).

187320212 is a wasteful number, since it uses less digits than its factorization.

187320212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 64127 (or 64125 counting only the distinct ones).

The product of its (nonzero) digits is 1344, while the sum is 26.

The square root of 187320212 is about 13686.4974336022. The cubic root of 187320212 is about 572.1741242103.

Adding to 187320212 its reverse (212023781), we get a palindrome (399343993).

The spelling of 187320212 in words is "one hundred eighty-seven million, three hundred twenty thousand, two hundred twelve".