1043623453 has 2 divisors, whose sum is σ = 1043623454. Its totient is φ = 1043623452.

The previous prime is 1043623397. The next prime is 1043623487. The reversal of 1043623453 is 3543263401.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 655257604 + 388365849 = 25598^2 + 19707^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1043623453 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1043620453) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 521811726 + 521811727.

It is an arithmetic number, because the mean of its divisors is an integer number (521811727).

Almost surely, 2^1043623453 is an apocalyptic number.

It is an amenable number.

1043623453 is a deficient number, since it is larger than the sum of its proper divisors (1).

1043623453 is an equidigital number, since it uses as much as digits as its factorization.

1043623453 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 25920, while the sum is 31.

The square root of 1043623453 is about 32305.1613987610. The cubic root of 1043623453 is about 1014.3346859334.

Adding to 1043623453 its reverse (3543263401), we get a palindrome (4586886854).

The spelling of 1043623453 in words is "one billion, forty-three million, six hundred twenty-three thousand, four hundred fifty-three".