1305139996 has 12 divisors (see below), whose sum is σ = 2285603320. Its totient is φ = 652110480.

The previous prime is 1305139993. The next prime is 1305140009. The reversal of 1305139996 is 6999315031.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1305139993) 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 3 ways as a sum of consecutive naturals, for example, 108450 + ... + 119881.

Almost surely, 2^1305139996 is an apocalyptic number.

It is an amenable number.

1305139996 is a deficient number, since it is larger than the sum of its proper divisors (980463324).

1305139996 is a wasteful number, since it uses less digits than its factorization.

1305139996 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 229764 (or 229762 counting only the distinct ones).

The product of its (nonzero) digits is 196830, while the sum is 46.

The square root of 1305139996 is about 36126.7213569125. The cubic root of 1305139996 is about 1092.8293902116.

The spelling of 1305139996 in words is "one billion, three hundred five million, one hundred thirty-nine thousand, nine hundred ninety-six".