213045130 has 16 divisors (see below), whose sum is σ = 384059880. Its totient is φ = 85089472.

The previous prime is 213045127. The next prime is 213045137. The reversal of 213045130 is 31540312.

It can be written as a sum of positive squares in 4 ways, for example, as 209873169 + 3171961 = 14487^2 + 1781^2 .

It is a junction number, because it is equal to n+sod(n) for n = 213045098 and 213045107.

It is not an unprimeable number, because it can be changed into a prime (213045137) 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, 8965 + ... + 22504.

Almost surely, 2^213045130 is an apocalyptic number.

213045130 is a deficient number, since it is larger than the sum of its proper divisors (171014750).

213045130 is a wasteful number, since it uses less digits than its factorization.

213045130 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 32153.

The product of its (nonzero) digits is 360, while the sum is 19.

The square root of 213045130 is about 14596.0655657612. The cubic root of 213045130 is about 597.2514374923.

Adding to 213045130 its reverse (31540312), we get a palindrome (244585442).

The spelling of 213045130 in words is "two hundred thirteen million, forty-five thousand, one hundred thirty".