212682755 has 16 divisors (see below), whose sum is σ = 261201024. Its totient is φ = 166174080.

The previous prime is 212682727. The next prime is 212682763. The reversal of 212682755 is 557286212.

It is not a de Polignac number, because 212682755 - 2¹² = 212678659 is a prime.

It is a Duffinian number.

It is an unprimeable number.

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 15 ways as a sum of consecutive naturals, for example, 199925 + ... + 200985.

It is an arithmetic number, because the mean of its divisors is an integer number (16325064).

Almost surely, 2^212682755 is an apocalyptic number.

212682755 is a deficient number, since it is larger than the sum of its proper divisors (48518269).

212682755 is a wasteful number, since it uses less digits than its factorization.

212682755 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1966.

The product of its digits is 67200, while the sum is 38.

The square root of 212682755 is about 14583.6468347255. The cubic root of 212682755 is about 596.9126175500.

The spelling of 212682755 in words is "two hundred twelve million, six hundred eighty-two thousand, seven hundred fifty-five".