212154001 has 8 divisors (see below), whose sum is σ = 221633280. Its totient is φ = 202696032.

The previous prime is 212153993. The next prime is 212154011. The reversal of 212154001 is 100451212.

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 212154001 - 2³ = 212153993 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (212154011) 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, 17080 + ... + 26758.

It is an arithmetic number, because the mean of its divisors is an integer number (27704160).

Almost surely, 2^212154001 is an apocalyptic number.

It is an amenable number.

212154001 is a deficient number, since it is larger than the sum of its proper divisors (9479279).

212154001 is an equidigital number, since it uses as much as digits as its factorization.

212154001 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10655.

The product of its (nonzero) digits is 80, while the sum is 16.

The square root of 212154001 is about 14565.5072345593. The cubic root of 212154001 is about 596.4175423821.

The spelling of 212154001 in words is "two hundred twelve million, one hundred fifty-four thousand, one".