212156033 has 8 divisors (see below), whose sum is σ = 230526720. Its totient is φ = 194505840.

The previous prime is 212156029. The next prime is 212156047. The reversal of 212156033 is 330651212.

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 212156033 - 2² = 212156029 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (212156003) 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 7 ways as a sum of consecutive naturals, for example, 179510 + ... + 180687.

It is an arithmetic number, because the mean of its divisors is an integer number (28815840).

Almost surely, 2^212156033 is an apocalyptic number.

It is an amenable number.

212156033 is a deficient number, since it is larger than the sum of its proper divisors (18370687).

212156033 is a wasteful number, since it uses less digits than its factorization.

212156033 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 360247.

The product of its (nonzero) digits is 1080, while the sum is 23.

The square root of 212156033 is about 14565.5769882281. The cubic root of 212156033 is about 596.4194465281.

The spelling of 212156033 in words is "two hundred twelve million, one hundred fifty-six thousand, thirty-three".