1315689 has 8 divisors (see below), whose sum is σ = 1764672. Its totient is φ = 871920.

The previous prime is 1315673. The next prime is 1315697. The reversal of 1315689 is 9865131.

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

It is not a de Polignac number, because 1315689 - 2⁴ = 1315673 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1315289) 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, 669 + ... + 1754.

It is an arithmetic number, because the mean of its divisors is an integer number (220584).

2^1315689 is an apocalyptic number.

It is an amenable number.

1315689 is a deficient number, since it is larger than the sum of its proper divisors (448983).

1315689 is a wasteful number, since it uses less digits than its factorization.

1315689 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2607.

The product of its digits is 6480, while the sum is 33.

The square root of 1315689 is about 1147.0348730531. The cubic root of 1315689 is about 109.5765816110.

The spelling of 1315689 in words is "one million, three hundred fifteen thousand, six hundred eighty-nine".