212351249 has 12 divisors (see below), whose sum is σ = 243562368. Its totient is φ = 184650840.

The previous prime is 212351221. The next prime is 212351257. The reversal of 212351249 is 942153212.

It is a de Polignac number, because none of the positive numbers 2^k-212351249 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (212351219) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 35369 + ... + 40934.

It is an arithmetic number, because the mean of its divisors is an integer number (20296864).

Almost surely, 2^212351249 is an apocalyptic number.

It is an amenable number.

212351249 is a deficient number, since it is larger than the sum of its proper divisors (31211119).

212351249 is a wasteful number, since it uses less digits than its factorization.

212351249 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 76348 (or 76337 counting only the distinct ones).

The product of its digits is 4320, while the sum is 29.

The square root of 212351249 is about 14572.2767267164. The cubic root of 212351249 is about 596.6023228195.

The spelling of 212351249 in words is "two hundred twelve million, three hundred fifty-one thousand, two hundred forty-nine".