1045390271 has 2 divisors, whose sum is σ = 1045390272. Its totient is φ = 1045390270.

The previous prime is 1045390259. The next prime is 1045390361. The reversal of 1045390271 is 1720935401.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 1045390271 - 2¹⁴ = 1045373887 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1045390471) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 522695135 + 522695136.

It is an arithmetic number, because the mean of its divisors is an integer number (522695136).

Almost surely, 2^1045390271 is an apocalyptic number.

1045390271 is a deficient number, since it is larger than the sum of its proper divisors (1).

1045390271 is an equidigital number, since it uses as much as digits as its factorization.

1045390271 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 7560, while the sum is 32.

The square root of 1045390271 is about 32332.4955888035. The cubic root of 1045390271 is about 1014.9067742602.

The spelling of 1045390271 in words is "one billion, forty-five million, three hundred ninety thousand, two hundred seventy-one".