1145394443 has 2 divisors, whose sum is σ = 1145394444. Its totient is φ = 1145394442.

The previous prime is 1145394433. The next prime is 1145394451. The reversal of 1145394443 is 3444935411.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 1145394443 - 2⁶ = 1145394379 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 1145394397 and 1145394406.

It is not a weakly prime, because it can be changed into another prime (1145394433) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 572697221 + 572697222.

It is an arithmetic number, because the mean of its divisors is an integer number (572697222).

Almost surely, 2^1145394443 is an apocalyptic number.

1145394443 is a deficient number, since it is larger than the sum of its proper divisors (1).

1145394443 is an equidigital number, since it uses as much as digits as its factorization.

1145394443 is an evil number, because the sum of its binary digits is even.

The product of its digits is 103680, while the sum is 38.

The square root of 1145394443 is about 33843.6765585537. The cubic root of 1145394443 is about 1046.2890750009.

The spelling of 1145394443 in words is "one billion, one hundred forty-five million, three hundred ninety-four thousand, four hundred forty-three".