1368109045 has 4 divisors (see below), whose sum is σ = 1641730860. Its totient is φ = 1094487232.

The previous prime is 1368109021. The next prime is 1368109103. The reversal of 1368109045 is 5409018631.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 233295076 + 1134813969 = 15274^2 + 33687^2 .

It is a cyclic number.

It is not a de Polignac number, because 1368109045 - 2⁵ = 1368109013 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 1368108995 and 1368109013.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 136810900 + ... + 136810909.

It is an arithmetic number, because the mean of its divisors is an integer number (410432715).

Almost surely, 2^1368109045 is an apocalyptic number.

It is an amenable number.

1368109045 is a deficient number, since it is larger than the sum of its proper divisors (273621815).

1368109045 is an equidigital number, since it uses as much as digits as its factorization.

1368109045 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 273621814.

The product of its (nonzero) digits is 25920, while the sum is 37.

The square root of 1368109045 is about 36987.9581080113. The cubic root of 1368109045 is about 1110.1293156161.

The spelling of 1368109045 in words is "one billion, three hundred sixty-eight million, one hundred nine thousand, forty-five".