212554047 has 8 divisors (see below), whose sum is σ = 284582320. Its totient is φ = 141114240.

The previous prime is 212554039. The next prime is 212554057. The reversal of 212554047 is 740455212.

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

It is not a de Polignac number, because 212554047 - 2³ = 212554039 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (212554037) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 146272 + ... + 147717.

It is an arithmetic number, because the mean of its divisors is an integer number (35572790).

Almost surely, 2^212554047 is an apocalyptic number.

212554047 is a deficient number, since it is larger than the sum of its proper divisors (72028273).

212554047 is a wasteful number, since it uses less digits than its factorization.

212554047 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 294233.

The product of its (nonzero) digits is 11200, while the sum is 30.

The square root of 212554047 is about 14579.2334160614. The cubic root of 212554047 is about 596.7921831936.

The spelling of 212554047 in words is "two hundred twelve million, five hundred fifty-four thousand, forty-seven".