212558473 has 8 divisors (see below), whose sum is σ = 218100960. Its totient is φ = 207033120.

The previous prime is 212558399. The next prime is 212558477. The reversal of 212558473 is 374855212.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-212558473 is a prime.

It is a super-2 number, since 2×212558473² = 90362208888183458, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (212558477) 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, 23086 + ... + 30952.

It is an arithmetic number, because the mean of its divisors is an integer number (27262620).

Almost surely, 2^212558473 is an apocalyptic number.

It is an amenable number.

212558473 is a deficient number, since it is larger than the sum of its proper divisors (5542487).

212558473 is an equidigital number, since it uses as much as digits as its factorization.

212558473 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8567.

The product of its digits is 67200, while the sum is 37.

The square root of 212558473 is about 14579.3852065168. The cubic root of 212558473 is about 596.7963254873.

The spelling of 212558473 in words is "two hundred twelve million, five hundred fifty-eight thousand, four hundred seventy-three".