1001305 has 8 divisors (see below), whose sum is σ = 1253952. Its totient is φ = 766128.

The previous prime is 1001303. The next prime is 1001311. The reversal of 1001305 is 5031001.

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

It is a cyclic number.

It is not a de Polignac number, because 1001305 - 2¹ = 1001303 is a prime.

It is a super-3 number, since 3×1001305³ = 3011760333892342875, which contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1001291 and 1001300.

It is not an unprimeable number, because it can be changed into a prime (1001303) 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, 4239 + ... + 4468.

It is an arithmetic number, because the mean of its divisors is an integer number (156744).

2^1001305 is an apocalyptic number.

It is an amenable number.

1001305 is a deficient number, since it is larger than the sum of its proper divisors (252647).

1001305 is an equidigital number, since it uses as much as digits as its factorization.

1001305 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8735.

The product of its (nonzero) digits is 15, while the sum is 10.

The square root of 1001305 is about 1000.6522872607. The cubic root of 1001305 is about 100.0434810912.

Adding to 1001305 its reverse (5031001), we get a palindrome (6032306).

The spelling of 1001305 in words is "one million, one thousand, three hundred five".