1045904345 has 16 divisors (see below), whose sum is σ = 1364834448. Its totient is φ = 766218240.

The previous prime is 1045904341. The next prime is 1045904407. The reversal of 1045904345 is 5434095401.

It can be written as a sum of positive squares in 8 ways, for example, as 353740864 + 692163481 = 18808^2 + 26309^2 .

It is not a de Polignac number, because 1045904345 - 2² = 1045904341 is a prime.

It is a Duffinian number.

It is a zygodrome in base 3.

It is not an unprimeable number, because it can be changed into a prime (1045904341) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 163136 + ... + 169425.

It is an arithmetic number, because the mean of its divisors is an integer number (85302153).

Almost surely, 2^1045904345 is an apocalyptic number.

It is an amenable number.

1045904345 is a deficient number, since it is larger than the sum of its proper divisors (318930103).

1045904345 is a wasteful number, since it uses less digits than its factorization.

1045904345 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 332620.

The product of its (nonzero) digits is 43200, while the sum is 35.

The square root of 1045904345 is about 32340.4444156230. Note that the first 4 decimals coincide. The cubic root of 1045904345 is about 1015.0731082125.

Adding to 1045904345 its reverse (5434095401), we get a palindrome (6479999746).

The spelling of 1045904345 in words is "one billion, forty-five million, nine hundred four thousand, three hundred forty-five".