1145262445 has 4 divisors (see below), whose sum is σ = 1374314940. Its totient is φ = 916209952.

The previous prime is 1145262439. The next prime is 1145262493. The reversal of 1145262445 is 5442625411.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 833881129 + 311381316 = 28877^2 + 17646^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1145262445 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 1145262445.

It is a congruent number.

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 114526240 + ... + 114526249.

It is an arithmetic number, because the mean of its divisors is an integer number (343578735).

Almost surely, 2^1145262445 is an apocalyptic number.

It is an amenable number.

1145262445 is a deficient number, since it is larger than the sum of its proper divisors (229052495).

1145262445 is an equidigital number, since it uses as much as digits as its factorization.

1145262445 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 229052494.

The product of its digits is 38400, while the sum is 34.

The square root of 1145262445 is about 33841.7263891782. The cubic root of 1145262445 is about 1046.2488811702.

Adding to 1145262445 its reverse (5442625411), we get a palindrome (6587887856).

The spelling of 1145262445 in words is "one billion, one hundred forty-five million, two hundred sixty-two thousand, four hundred forty-five".