1368195309 has 96 divisors (see below), whose sum is σ = 2335132800. Its totient is φ = 764375040.

The previous prime is 1368195223. The next prime is 1368195337. The reversal of 1368195309 is 9035918631.

1368195309 is a `hidden beast` number, since 1 + 36 + 81 + 9 + 530 + 9 = 666.

It is not a de Polignac number, because 1368195309 - 2¹¹ = 1368193261 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1368195809) by changing a digit.

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 95 ways as a sum of consecutive naturals, for example, 10444174 + ... + 10444304.

It is an arithmetic number, because the mean of its divisors is an integer number (24324300).

Almost surely, 2^1368195309 is an apocalyptic number.

It is an amenable number.

1368195309 is a deficient number, since it is larger than the sum of its proper divisors (966937491).

1368195309 is a wasteful number, since it uses less digits than its factorization.

1368195309 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 315 (or 312 counting only the distinct ones).

The product of its (nonzero) digits is 174960, while the sum is 45.

The square root of 1368195309 is about 36989.1241988777. The cubic root of 1368195309 is about 1110.1526476214.

The spelling of 1368195309 in words is "one billion, three hundred sixty-eight million, one hundred ninety-five thousand, three hundred nine".