213272530 has 32 divisors (see below), whose sum is σ = 411739200. Its totient is φ = 79290432.

The previous prime is 213272519. The next prime is 213272539. The reversal of 213272530 is 35272312.

It is a junction number, because it is equal to n+sod(n) for n = 213272495 and 213272504.

It is not an unprimeable number, because it can be changed into a prime (213272539) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 520 + ... + 20659.

It is an arithmetic number, because the mean of its divisors is an integer number (12866850).

Almost surely, 2^213272530 is an apocalyptic number.

213272530 is a deficient number, since it is larger than the sum of its proper divisors (198466670).

213272530 is a wasteful number, since it uses less digits than its factorization.

213272530 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21258.

The product of its (nonzero) digits is 2520, while the sum is 25.

The square root of 213272530 is about 14603.8532586438. The cubic root of 213272530 is about 597.4638599080.

The spelling of 213272530 in words is "two hundred thirteen million, two hundred seventy-two thousand, five hundred thirty".