1045440023 has 2 divisors, whose sum is σ = 1045440024. Its totient is φ = 1045440022.

The previous prime is 1045439981. The next prime is 1045440031. The reversal of 1045440023 is 3200445401.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 1045440023 - 2¹⁶ = 1045374487 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1045446023) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 522720011 + 522720012.

It is an arithmetic number, because the mean of its divisors is an integer number (522720012).

Almost surely, 2^1045440023 is an apocalyptic number.

1045440023 is a deficient number, since it is larger than the sum of its proper divisors (1).

1045440023 is an equidigital number, since it uses as much as digits as its factorization.

1045440023 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1920, while the sum is 23.

The square root of 1045440023 is about 32333.2649604088. The cubic root of 1045440023 is about 1014.9228744167.

Adding to 1045440023 its reverse (3200445401), we get a palindrome (4245885424).

The spelling of 1045440023 in words is "one billion, forty-five million, four hundred forty thousand, twenty-three".