1071730213 has 4 divisors (see below), whose sum is σ = 1072401228. Its totient is φ = 1071059200.

The previous prime is 1071730211. The next prime is 1071730229. The reversal of 1071730213 is 3120371701.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 1069486209 + 2244004 = 32703^2 + 1498^2 .

It is a cyclic number.

It is not a de Polignac number, because 1071730213 - 2¹ = 1071730211 is a prime.

It is a super-2 number, since 2×1071730213² = 2297211298914050738, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1071730211) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 333106 + ... + 336307.

It is an arithmetic number, because the mean of its divisors is an integer number (268100307).

Almost surely, 2^1071730213 is an apocalyptic number.

It is an amenable number.

1071730213 is a deficient number, since it is larger than the sum of its proper divisors (671015).

1071730213 is an equidigital number, since it uses as much as digits as its factorization.

1071730213 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 671014.

The product of its (nonzero) digits is 882, while the sum is 25.

The square root of 1071730213 is about 32737.2908622568. The cubic root of 1071730213 is about 1023.3601263261.

The spelling of 1071730213 in words is "one billion, seventy-one million, seven hundred thirty thousand, two hundred thirteen".