1043623445 has 4 divisors (see below), whose sum is σ = 1252348140. Its totient is φ = 834898752.

The previous prime is 1043623397. The next prime is 1043623453. The reversal of 1043623445 is 5443263401.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 5443263401 = 853 ⋅6381317.

It can be written as a sum of positive squares in 2 ways, for example, as 770118001 + 273505444 = 27751^2 + 16538^2 .

It is a cyclic number.

It is not a de Polignac number, because 1043623445 - 2²⁸ = 775187989 is a prime.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 104362340 + ... + 104362349.

It is an arithmetic number, because the mean of its divisors is an integer number (313087035).

Almost surely, 2^1043623445 is an apocalyptic number.

It is an amenable number.

1043623445 is a deficient number, since it is larger than the sum of its proper divisors (208724695).

1043623445 is an equidigital number, since it uses as much as digits as its factorization.

1043623445 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 208724694.

The product of its (nonzero) digits is 34560, while the sum is 32.

The square root of 1043623445 is about 32305.1612749418. The cubic root of 1043623445 is about 1014.3346833416.

Adding to 1043623445 its reverse (5443263401), we get a palindrome (6486886846).

The spelling of 1043623445 in words is "one billion, forty-three million, six hundred twenty-three thousand, four hundred forty-five".