1026623453 has 4 divisors (see below), whose sum is σ = 1026690588. Its totient is φ = 1026556320.

The previous prime is 1026623449. The next prime is 1026623483. The reversal of 1026623453 is 3543266201.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length, and also an emirpimes, since its reverse is a distinct semiprime: 3543266201 = 11597 ⋅305533.

It can be written as a sum of positive squares in 2 ways, for example, as 75394489 + 951228964 = 8683^2 + 30842^2 .

It is a cyclic number.

It is not a de Polignac number, because 1026623453 - 2² = 1026623449 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1026623483) 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 in 3 ways as a sum of consecutive naturals, for example, 1775 + ... + 45347.

It is an arithmetic number, because the mean of its divisors is an integer number (256672647).

Almost surely, 2^1026623453 is an apocalyptic number.

It is an amenable number.

1026623453 is a deficient number, since it is larger than the sum of its proper divisors (67135).

1026623453 is an equidigital number, since it uses as much as digits as its factorization.

1026623453 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 67134.

The product of its (nonzero) digits is 25920, while the sum is 32.

The square root of 1026623453 is about 32040.9652320276. The cubic root of 1026623453 is about 1008.7968724532.

Adding to 1026623453 its reverse (3543266201), we get a palindrome (4569889654).

The spelling of 1026623453 in words is "one billion, twenty-six million, six hundred twenty-three thousand, four hundred fifty-three".