1012305145 has 4 divisors (see below), whose sum is σ = 1214766180. Its totient is φ = 809844112.

The previous prime is 1012305083. The next prime is 1012305191. The reversal of 1012305145 is 5415032101.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 5415032101 = 53 ⋅102170417.

It can be written as a sum of positive squares in 2 ways, for example, as 142468096 + 869837049 = 11936^2 + 29493^2 .

It is a cyclic number.

It is not a de Polignac number, because 1012305145 - 2⁹ = 1012304633 is a prime.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 101230510 + ... + 101230519.

It is an arithmetic number, because the mean of its divisors is an integer number (303691545).

Almost surely, 2^1012305145 is an apocalyptic number.

It is an amenable number.

1012305145 is a deficient number, since it is larger than the sum of its proper divisors (202461035).

1012305145 is an equidigital number, since it uses as much as digits as its factorization.

1012305145 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 202461034.

The product of its (nonzero) digits is 600, while the sum is 22.

The square root of 1012305145 is about 31816.7431551377. The cubic root of 1012305145 is about 1004.0850050115.

Adding to 1012305145 its reverse (5415032101), we get a palindrome (6427337246).

The spelling of 1012305145 in words is "one billion, twelve million, three hundred five thousand, one hundred forty-five".