213195730 has 32 divisors (see below), whose sum is σ = 419489280. Its totient is φ = 77368320.

The previous prime is 213195727. The next prime is 213195743. The reversal of 213195730 is 37591312.

It is a junction number, because it is equal to n+sod(n) for n = 213195692 and 213195701.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 61791 + ... + 65149.

It is an arithmetic number, because the mean of its divisors is an integer number (13109040).

Almost surely, 2^213195730 is an apocalyptic number.

213195730 is a deficient number, since it is larger than the sum of its proper divisors (206293550).

213195730 is a wasteful number, since it uses less digits than its factorization.

213195730 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3954.

The product of its (nonzero) digits is 5670, while the sum is 31.

The square root of 213195730 is about 14601.2235788649. The cubic root of 213195730 is about 597.3921351945.

The spelling of 213195730 in words is "two hundred thirteen million, one hundred ninety-five thousand, seven hundred thirty".