1045443601 has 4 divisors (see below), whose sum is σ = 1049138032. Its totient is φ = 1041749172.

The previous prime is 1045443589. The next prime is 1045443617. The reversal of 1045443601 is 1063445401.

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, and also an emirpimes, since its reverse is a distinct semiprime: 1063445401 = 17987 ⋅59123.

It is a cyclic number.

It is not a de Polignac number, because 1045443601 - 2¹⁵ = 1045410833 is a prime.

It is a super-3 number, since 3×1045443601³ (a number of 28 digits) contains 333 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 1045443601.

It is not an unprimeable number, because it can be changed into a prime (1045443661) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1846791 + ... + 1847356.

It is an arithmetic number, because the mean of its divisors is an integer number (262284508).

Almost surely, 2^1045443601 is an apocalyptic number.

It is an amenable number.

1045443601 is a deficient number, since it is larger than the sum of its proper divisors (3694431).

1045443601 is an equidigital number, since it uses as much as digits as its factorization.

1045443601 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3694430.

The product of its (nonzero) digits is 5760, while the sum is 28.

The square root of 1045443601 is about 32333.3202903754. The cubic root of 1045443601 is about 1014.9240322672.

The spelling of 1045443601 in words is "one billion, forty-five million, four hundred forty-three thousand, six hundred one".