212868351 has 32 divisors (see below), whose sum is σ = 333527040. Its totient is φ = 133963200.

The previous prime is 212868329. The next prime is 212868367. The reversal of 212868351 is 153868212.

It is a happy number.

212868351 is a `hidden beast` number, since 21 + 286 + 8 + 351 = 666.

It is not a de Polignac number, because 212868351 - 2⁶ = 212868287 is a prime.

It is a zygodrome in base 3.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (212868301) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 31216 + ... + 37418.

It is an arithmetic number, because the mean of its divisors is an integer number (10422720).

Almost surely, 2^212868351 is an apocalyptic number.

212868351 is a deficient number, since it is larger than the sum of its proper divisors (120658689).

212868351 is a wasteful number, since it uses less digits than its factorization.

212868351 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6284 (or 6278 counting only the distinct ones).

The product of its digits is 23040, while the sum is 36.

The square root of 212868351 is about 14590.0086017795. The cubic root of 212868351 is about 597.0861974980.

The spelling of 212868351 in words is "two hundred twelve million, eight hundred sixty-eight thousand, three hundred fifty-one".