1145304545 has 16 divisors (see below), whose sum is σ = 1713495168. Its totient is φ = 713955840.

The previous prime is 1145304533. The next prime is 1145304547. The reversal of 1145304545 is 5454035411.

It is not a de Polignac number, because 1145304545 - 2¹⁶ = 1145239009 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1145304547) 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, 1487024 + ... + 1487793.

It is an arithmetic number, because the mean of its divisors is an integer number (107093448).

Almost surely, 2^1145304545 is an apocalyptic number.

It is an amenable number.

1145304545 is a deficient number, since it is larger than the sum of its proper divisors (568190623).

1145304545 is a wasteful number, since it uses less digits than its factorization.

1145304545 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2974840.

The product of its (nonzero) digits is 24000, while the sum is 32.

The square root of 1145304545 is about 33842.3483966465. The cubic root of 1145304545 is about 1046.2617010958.

Adding to 1145304545 its reverse (5454035411), we get a palindrome (6599339956).

The spelling of 1145304545 in words is "one billion, one hundred forty-five million, three hundred four thousand, five hundred forty-five".