1318671 has 6 divisors (see below), whose sum is σ = 1904760. Its totient is φ = 879108.

The previous prime is 1318663. The next prime is 1318697. The reversal of 1318671 is 1768131.

It is not a de Polignac number, because 1318671 - 2³ = 1318663 is a prime.

It is an Ulam number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1318661) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 73251 + ... + 73268.

It is an arithmetic number, because the mean of its divisors is an integer number (317460).

2^1318671 is an apocalyptic number.

1318671 is a deficient number, since it is larger than the sum of its proper divisors (586089).

1318671 is a wasteful number, since it uses less digits than its factorization.

1318671 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 146525 (or 146522 counting only the distinct ones).

The product of its digits is 1008, while the sum is 27.

The square root of 1318671 is about 1148.3340106432. The cubic root of 1318671 is about 109.6593040001.

The spelling of 1318671 in words is "one million, three hundred eighteen thousand, six hundred seventy-one".