212430545 has 8 divisors (see below), whose sum is σ = 268333440. Its totient is φ = 160999920.

The previous prime is 212430541. The next prime is 212430593. The reversal of 212430545 is 545034212.

It is a happy number.

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

It is not a de Polignac number, because 212430545 - 2² = 212430541 is a prime.

It is not an unprimeable number, because it can be changed into a prime (212430541) 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, 1117961 + ... + 1118150.

It is an arithmetic number, because the mean of its divisors is an integer number (33541680).

Almost surely, 2^212430545 is an apocalyptic number.

It is an amenable number.

212430545 is a deficient number, since it is larger than the sum of its proper divisors (55902895).

212430545 is a wasteful number, since it uses less digits than its factorization.

212430545 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2236135.

The product of its (nonzero) digits is 4800, while the sum is 26.

The square root of 212430545 is about 14574.9972555744. The cubic root of 212430545 is about 596.6765744673.

Adding to 212430545 its reverse (545034212), we get a palindrome (757464757).

The spelling of 212430545 in words is "two hundred twelve million, four hundred thirty thousand, five hundred forty-five".