1368575905 has 16 divisors (see below), whose sum is σ = 1739826000. Its totient is φ = 1029906432.

The previous prime is 1368575899. The next prime is 1368575927. The reversal of 1368575905 is 5095758631.

It can be written as a sum of positive squares in 8 ways, for example, as 24840256 + 1343735649 = 4984^2 + 36657^2 .

It is a cyclic number.

It is not a de Polignac number, because 1368575905 - 2¹³ = 1368567713 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 230737 + ... + 236593.

It is an arithmetic number, because the mean of its divisors is an integer number (108739125).

Almost surely, 2^1368575905 is an apocalyptic number.

It is an amenable number.

1368575905 is a deficient number, since it is larger than the sum of its proper divisors (371250095).

1368575905 is a wasteful number, since it uses less digits than its factorization.

1368575905 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8628.

The product of its (nonzero) digits is 1134000, while the sum is 49.

The square root of 1368575905 is about 36994.2685425729. The cubic root of 1368575905 is about 1110.2555765143.

The spelling of 1368575905 in words is "one billion, three hundred sixty-eight million, five hundred seventy-five thousand, nine hundred five".