212253305 has 8 divisors (see below), whose sum is σ = 277858944. Its totient is φ = 154366000.

The previous prime is 212253299. The next prime is 212253317. The reversal of 212253305 is 503352212.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 212253305 - 2¹⁰ = 212252281 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1929521 + ... + 1929630.

It is an arithmetic number, because the mean of its divisors is an integer number (34732368).

Almost surely, 2^212253305 is an apocalyptic number.

It is an amenable number.

212253305 is a deficient number, since it is larger than the sum of its proper divisors (65605639).

212253305 is a wasteful number, since it uses less digits than its factorization.

212253305 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3859167.

The product of its (nonzero) digits is 1800, while the sum is 23.

The square root of 212253305 is about 14568.9157111983. The cubic root of 212253305 is about 596.5105839288.

The spelling of 212253305 in words is "two hundred twelve million, two hundred fifty-three thousand, three hundred five".