1368539 has 8 divisors (see below), whose sum is σ = 1451520. Its totient is φ = 1288000.

The previous prime is 1368529. The next prime is 1368547. The reversal of 1368539 is 9358631.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1368539 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1368499 and 1368508.

It is not an unprimeable number, because it can be changed into a prime (1368509) 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, 614 + ... + 1764.

It is an arithmetic number, because the mean of its divisors is an integer number (181440).

2^1368539 is an apocalyptic number.

1368539 is a deficient number, since it is larger than the sum of its proper divisors (82981).

1368539 is a wasteful number, since it uses less digits than its factorization.

1368539 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1221.

The product of its digits is 19440, while the sum is 35.

The square root of 1368539 is about 1169.8457163233. The cubic root of 1368539 is about 111.0245596712.

The spelling of 1368539 in words is "one million, three hundred sixty-eight thousand, five hundred thirty-nine".