1023804545 has 16 divisors (see below), whose sum is σ = 1273266000. Its totient is φ = 789347328.

The previous prime is 1023804511. The next prime is 1023804553. The reversal of 1023804545 is 5454083201.

It can be written as a sum of positive squares in 8 ways, for example, as 282004849 + 741799696 = 16793^2 + 27236^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1023804545 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 76301 + ... + 88709.

It is an arithmetic number, because the mean of its divisors is an integer number (79579125).

Almost surely, 2^1023804545 is an apocalyptic number.

It is an amenable number.

1023804545 is a deficient number, since it is larger than the sum of its proper divisors (249461455).

1023804545 is a wasteful number, since it uses less digits than its factorization.

1023804545 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13012.

The product of its (nonzero) digits is 19200, while the sum is 32.

The square root of 1023804545 is about 31996.9458698795. The cubic root of 1023804545 is about 1007.8727061819.

Adding to 1023804545 its reverse (5454083201), we get a palindrome (6477887746).

The spelling of 1023804545 in words is "one billion, twenty-three million, eight hundred four thousand, five hundred forty-five".