1045675221 has 4 divisors (see below), whose sum is σ = 1394233632. Its totient is φ = 697116812.

The previous prime is 1045675207. The next prime is 1045675249. The reversal of 1045675221 is 1225765401.

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 a cyclic number.

It is not a de Polignac number, because 1045675221 - 2¹⁴ = 1045658837 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1045675021) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 174279201 + ... + 174279206.

It is an arithmetic number, because the mean of its divisors is an integer number (348558408).

Almost surely, 2^1045675221 is an apocalyptic number.

It is an amenable number.

1045675221 is a deficient number, since it is larger than the sum of its proper divisors (348558411).

1045675221 is an equidigital number, since it uses as much as digits as its factorization.

1045675221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 348558410.

The product of its (nonzero) digits is 16800, while the sum is 33.

The square root of 1045675221 is about 32336.9018460334. The cubic root of 1045675221 is about 1014.9989795099.

The spelling of 1045675221 in words is "one billion, forty-five million, six hundred seventy-five thousand, two hundred twenty-one".