230212505 has 8 divisors (see below), whose sum is σ = 276596424. Its totient is φ = 183942400.

The previous prime is 230212441. The next prime is 230212511. The reversal of 230212505 is 505212032.

It can be written as a sum of positive squares in 4 ways, for example, as 295936 + 229916569 = 544^2 + 15163^2 .

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

It is not a de Polignac number, because 230212505 - 2⁶ = 230212441 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 23936 + ... + 32145.

It is an arithmetic number, because the mean of its divisors is an integer number (34574553).

Almost surely, 2^230212505 is an apocalyptic number.

It is an amenable number.

230212505 is a deficient number, since it is larger than the sum of its proper divisors (46383919).

230212505 is an equidigital number, since it uses as much as digits as its factorization.

230212505 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 56907.

The product of its (nonzero) digits is 600, while the sum is 20.

The square root of 230212505 is about 15172.7553529344. The cubic root of 230212505 is about 612.8812054298.

Adding to 230212505 its reverse (505212032), we get a palindrome (735424537).

The spelling of 230212505 in words is "two hundred thirty million, two hundred twelve thousand, five hundred five".