1368553079 has 4 divisors (see below), whose sum is σ = 1372497384. Its totient is φ = 1364608776.

The previous prime is 1368553073. The next prime is 1368553129. The reversal of 1368553079 is 9703558631.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 9703558631 = 13 ⋅746427587.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1368553079 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1368553073) 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, 1971632 + ... + 1972325.

It is an arithmetic number, because the mean of its divisors is an integer number (343124346).

Almost surely, 2^1368553079 is an apocalyptic number.

1368553079 is a deficient number, since it is larger than the sum of its proper divisors (3944305).

1368553079 is an equidigital number, since it uses as much as digits as its factorization.

1368553079 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3944304.

The product of its (nonzero) digits is 680400, while the sum is 47.

The square root of 1368553079 is about 36993.9600340380. The cubic root of 1368553079 is about 1110.2494039582.

The spelling of 1368553079 in words is "one billion, three hundred sixty-eight million, five hundred fifty-three thousand, seventy-nine".