1368355297 has 4 divisors (see below), whose sum is σ = 1375999920. Its totient is φ = 1360710676.

The previous prime is 1368355291. The next prime is 1368355301. The reversal of 1368355297 is 7925538631.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1368355297 is a prime.

It is a Smith number, since the sum of its digits (49) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 1368355297.

It is not an unprimeable number, because it can be changed into a prime (1368355291) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3822043 + ... + 3822400.

It is an arithmetic number, because the mean of its divisors is an integer number (343999980).

Almost surely, 2^1368355297 is an apocalyptic number.

It is an amenable number.

1368355297 is a deficient number, since it is larger than the sum of its proper divisors (7644623).

1368355297 is an equidigital number, since it uses as much as digits as its factorization.

1368355297 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7644622.

The product of its digits is 1360800, while the sum is 49.

The square root of 1368355297 is about 36991.2867713466. The cubic root of 1368355297 is about 1110.1959173160.

The spelling of 1368355297 in words is "one billion, three hundred sixty-eight million, three hundred fifty-five thousand, two hundred ninety-seven".