1368917513 has 8 divisors (see below), whose sum is σ = 1401249696. Its totient is φ = 1336608000.

The previous prime is 1368917489. The next prime is 1368917551. The reversal of 1368917513 is 3157198631.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 1368917513 - 2⁶ = 1368917449 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1368917573) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 231038 + ... + 236888.

It is an arithmetic number, because the mean of its divisors is an integer number (175156212).

Almost surely, 2^1368917513 is an apocalyptic number.

It is an amenable number.

1368917513 is a deficient number, since it is larger than the sum of its proper divisors (32332183).

1368917513 is an equidigital number, since it uses as much as digits as its factorization.

1368917513 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11335.

The product of its digits is 136080, while the sum is 44.

The square root of 1368917513 is about 36998.8852940193. The cubic root of 1368917513 is about 1110.3479451908.

The spelling of 1368917513 in words is "one billion, three hundred sixty-eight million, nine hundred seventeen thousand, five hundred thirteen".