1023604605 has 12 divisors (see below), whose sum is σ = 1774248060. Its totient is φ = 545922432.

The previous prime is 1023604597. The next prime is 1023604733. The reversal of 1023604605 is 5064063201.

It can be written as a sum of positive squares in 2 ways, for example, as 577296729 + 446307876 = 24027^2 + 21126^2 .

It is not a de Polignac number, because 1023604605 - 2³ = 1023604597 is a prime.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 11373340 + ... + 11373429.

It is an arithmetic number, because the mean of its divisors is an integer number (147854005).

Almost surely, 2^1023604605 is an apocalyptic number.

1023604605 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

1023604605 is a deficient number, since it is larger than the sum of its proper divisors (750643455).

1023604605 is a wasteful number, since it uses less digits than its factorization.

1023604605 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22746780 (or 22746777 counting only the distinct ones).

The product of its (nonzero) digits is 4320, while the sum is 27.

The square root of 1023604605 is about 31993.8213566307. The cubic root of 1023604605 is about 1007.8070923597.

Adding to 1023604605 its reverse (5064063201), we get a palindrome (6087667806).

The spelling of 1023604605 in words is "one billion, twenty-three million, six hundred four thousand, six hundred five".