1912831213 has 8 divisors (see below), whose sum is σ = 2082938400. Its totient is φ = 1749667248.

The previous prime is 1912831199. The next prime is 1912831253. The reversal of 1912831213 is 3121382191.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1912831213 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1912831253) 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 7 ways as a sum of consecutive naturals, for example, 1735231 + ... + 1736332.

It is an arithmetic number, because the mean of its divisors is an integer number (260367300).

Almost surely, 2^1912831213 is an apocalyptic number.

It is an amenable number.

1912831213 is a deficient number, since it is larger than the sum of its proper divisors (170107187).

1912831213 is a wasteful number, since it uses less digits than its factorization.

1912831213 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3471611.

The product of its digits is 2592, while the sum is 31.

The square root of 1912831213 is about 43735.9258847918. The cubic root of 1912831213 is about 1241.3441920484.

The spelling of 1912831213 in words is "one billion, nine hundred twelve million, eight hundred thirty-one thousand, two hundred thirteen".