1043012643 has 8 divisors (see below), whose sum is σ = 1391124048. Its totient is φ = 695121504.

The previous prime is 1043012623. The next prime is 1043012693. The reversal of 1043012643 is 3462103401.

1043012643 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is not a de Polignac number, because 1043012643 - 2¹⁴ = 1042996259 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1043012623) 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, 43680 + ... + 63197.

It is an arithmetic number, because the mean of its divisors is an integer number (173890506).

Almost surely, 2^1043012643 is an apocalyptic number.

1043012643 is a deficient number, since it is larger than the sum of its proper divisors (348111405).

1043012643 is a wasteful number, since it uses less digits than its factorization.

1043012643 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 110133.

The product of its (nonzero) digits is 1728, while the sum is 24.

The square root of 1043012643 is about 32295.7062625978. The cubic root of 1043012643 is about 1014.1367580058.

The spelling of 1043012643 in words is "one billion, forty-three million, twelve thousand, six hundred forty-three".