1943072013 has 4 divisors (see below), whose sum is σ = 2590762688. Its totient is φ = 1295381340.

The previous prime is 1943072011. The next prime is 1943072059. The reversal of 1943072013 is 3102703491.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 1943072013 - 2¹ = 1943072011 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 (1943072011) 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, 323845333 + ... + 323845338.

It is an arithmetic number, because the mean of its divisors is an integer number (647690672).

Almost surely, 2^1943072013 is an apocalyptic number.

It is an amenable number.

1943072013 is a deficient number, since it is larger than the sum of its proper divisors (647690675).

1943072013 is an equidigital number, since it uses as much as digits as its factorization.

1943072013 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 647690674.

The product of its (nonzero) digits is 4536, while the sum is 30.

The square root of 1943072013 is about 44080.2905276270. The cubic root of 1943072013 is about 1247.8516726402.

The spelling of 1943072013 in words is "one billion, nine hundred forty-three million, seventy-two thousand, thirteen".