1308345 has 8 divisors (see below), whose sum is σ = 2093376. Its totient is φ = 697776.

The previous prime is 1308343. The next prime is 1308353. The reversal of 1308345 is 5438031.

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

It is not a de Polignac number, because 1308345 - 2¹ = 1308343 is a prime.

It is an Ulam number.

It is not an unprimeable number, because it can be changed into a prime (1308343) 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, 43597 + ... + 43626.

It is an arithmetic number, because the mean of its divisors is an integer number (261672).

2^1308345 is an apocalyptic number.

1308345 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

1308345 is a deficient number, since it is larger than the sum of its proper divisors (785031).

1308345 is an equidigital number, since it uses as much as digits as its factorization.

1308345 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 87231.

The product of its (nonzero) digits is 1440, while the sum is 24.

The square root of 1308345 is about 1143.8290956257. The cubic root of 1308345 is about 109.3723204786.

It can be divided in two parts, 1308 and 345, that added together give a triangular number (1653 = T₅₇).

The spelling of 1308345 in words is "one million, three hundred eight thousand, three hundred forty-five".