1316745 has 24 divisors (see below), whose sum is σ = 2363400. Its totient is φ = 677376.

The previous prime is 1316743. The next prime is 1316761. The reversal of 1316745 is 5476131.

It can be written as a sum of positive squares in 4 ways, for example, as 71289 + 1245456 = 267^2 + 1116^2 .

It is not a de Polignac number, because 1316745 - 2¹ = 1316743 is a prime.

1316745 is a lucky number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1316741) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 801 + ... + 1809.

It is an arithmetic number, because the mean of its divisors is an integer number (98475).

2^1316745 is an apocalyptic number.

1316745 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

1316745 is a deficient number, since it is larger than the sum of its proper divisors (1046655).

1316745 is a wasteful number, since it uses less digits than its factorization.

1316745 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1049 (or 1046 counting only the distinct ones).

The product of its digits is 2520, while the sum is 27.

The square root of 1316745 is about 1147.4950980287. The cubic root of 1316745 is about 109.6058899369.

The spelling of 1316745 in words is "one million, three hundred sixteen thousand, seven hundred forty-five".