212251245 has 32 divisors (see below), whose sum is σ = 356832000. Its totient is φ = 107526144.

The previous prime is 212251217. The next prime is 212251289. The reversal of 212251245 is 542152212.

It is not a de Polignac number, because 212251245 - 2⁵ = 212251213 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 49341 + ... + 53469.

It is an arithmetic number, because the mean of its divisors is an integer number (11151000).

Almost surely, 2^212251245 is an apocalyptic number.

It is an amenable number.

212251245 is a deficient number, since it is larger than the sum of its proper divisors (144580755).

212251245 is a wasteful number, since it uses less digits than its factorization.

212251245 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4309.

The product of its digits is 1600, while the sum is 24.

The square root of 212251245 is about 14568.8450125602. The cubic root of 212251245 is about 596.5086541343.

The spelling of 212251245 in words is "two hundred twelve million, two hundred fifty-one thousand, two hundred forty-five".