212484605 has 8 divisors (see below), whose sum is σ = 255082200. Its totient is φ = 169920576.

The previous prime is 212484593. The next prime is 212484661. The reversal of 212484605 is 506484212.

It can be written as a sum of positive squares in 4 ways, for example, as 16176484 + 196308121 = 4022^2 + 14011^2 .

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

It is a cyclic number.

It is not a de Polignac number, because 212484605 - 2¹⁰ = 212483581 is a prime.

It is a congruent number.

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, 8711 + ... + 22379.

It is an arithmetic number, because the mean of its divisors is an integer number (31885275).

Almost surely, 2^212484605 is an apocalyptic number.

It is an amenable number.

212484605 is a deficient number, since it is larger than the sum of its proper divisors (42597595).

212484605 is a wasteful number, since it uses less digits than its factorization.

212484605 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16783.

The product of its (nonzero) digits is 15360, while the sum is 32.

The square root of 212484605 is about 14576.8516834054. The cubic root of 212484605 is about 596.7271848911.

The spelling of 212484605 in words is "two hundred twelve million, four hundred eighty-four thousand, six hundred five".