1313745 has 8 divisors (see below), whose sum is σ = 2102016. Its totient is φ = 700656.

The previous prime is 1313731. The next prime is 1313747. The reversal of 1313745 is 5473131.

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

It is not a de Polignac number, because 1313745 - 2¹⁶ = 1248209 is a prime.

It is an Ulam number.

It is not an unprimeable number, because it can be changed into a prime (1313747) 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, 43777 + ... + 43806.

It is an arithmetic number, because the mean of its divisors is an integer number (262752).

2^1313745 is an apocalyptic number.

1313745 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

1313745 is a deficient number, since it is larger than the sum of its proper divisors (788271).

1313745 is an equidigital number, since it uses as much as digits as its factorization.

1313745 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 87591.

The product of its digits is 1260, while the sum is 24.

The square root of 1313745 is about 1146.1871574922. The cubic root of 1313745 is about 109.5225866128.

Adding to 1313745 its reverse (5473131), we get a palindrome (6786876).

The spelling of 1313745 in words is "one million, three hundred thirteen thousand, seven hundred forty-five".