1023450505 has 48 divisors (see below), whose sum is σ = 1564871616. Its totient is φ = 635402880.

The previous prime is 1023450503. The next prime is 1023450509. The reversal of 1023450505 is 5050543201.

It is not a de Polignac number, because 1023450505 - 2¹ = 1023450503 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 1023450505.

It is not an unprimeable number, because it can be changed into a prime (1023450503) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 826747 + ... + 827983.

It is an arithmetic number, because the mean of its divisors is an integer number (32601492).

Almost surely, 2^1023450505 is an apocalyptic number.

It is an amenable number.

1023450505 is a deficient number, since it is larger than the sum of its proper divisors (541421111).

1023450505 is a wasteful number, since it uses less digits than its factorization.

1023450505 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1574 (or 1567 counting only the distinct ones).

The product of its (nonzero) digits is 3000, while the sum is 25.

The square root of 1023450505 is about 31991.4129884880. The cubic root of 1023450505 is about 1007.7565159078.

Adding to 1023450505 its reverse (5050543201), we get a palindrome (6073993706).

The spelling of 1023450505 in words is "one billion, twenty-three million, four hundred fifty thousand, five hundred five".