212896455 has 16 divisors (see below), whose sum is σ = 344463840. Its totient is φ = 112268288.

The previous prime is 212896451. The next prime is 212896517. The reversal of 212896455 is 554698212.

It is a cyclic number.

It is not a de Polignac number, because 212896455 - 2² = 212896451 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (212896451) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 78402 + ... + 81071.

It is an arithmetic number, because the mean of its divisors is an integer number (21528990).

Almost surely, 2^212896455 is an apocalyptic number.

212896455 is a deficient number, since it is larger than the sum of its proper divisors (131567385).

212896455 is a wasteful number, since it uses less digits than its factorization.

212896455 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 159570.

The product of its digits is 172800, while the sum is 42.

The square root of 212896455 is about 14590.9716948530. The cubic root of 212896455 is about 597.1124731624.

The spelling of 212896455 in words is "two hundred twelve million, eight hundred ninety-six thousand, four hundred fifty-five".