1305212050 has 24 divisors (see below), whose sum is σ = 2533248576. Its totient is φ = 499385040.

The previous prime is 1305212033. The next prime is 1305212053. The reversal of 1305212050 is 502125031.

It is not an unprimeable number, because it can be changed into a prime (1305212053) by changing a digit.

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 11 ways as a sum of consecutive naturals, for example, 566334 + ... + 568633.

It is an arithmetic number, because the mean of its divisors is an integer number (105552024).

Almost surely, 2^1305212050 is an apocalyptic number.

1305212050 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1305212050 is a deficient number, since it is larger than the sum of its proper divisors (1228036526).

1305212050 is a wasteful number, since it uses less digits than its factorization.

1305212050 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1135002 (or 1134997 counting only the distinct ones).

The product of its (nonzero) digits is 300, while the sum is 19.

The square root of 1305212050 is about 36127.7185828278. The cubic root of 1305212050 is about 1092.8495007694.

Adding to 1305212050 its reverse (502125031), we get a palindrome (1807337081).

The spelling of 1305212050 in words is "one billion, three hundred five million, two hundred twelve thousand, fifty".