1305001 has 4 divisors (see below), whose sum is σ = 1321600. Its totient is φ = 1288404.

The previous prime is 1304987. The next prime is 1305011. The reversal of 1305001 is 1005031.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 1305001 - 2⁵ = 1304969 is a prime.

It is a super-2 number, since 2×1305001² = 3406055220002, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1305011) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 8181 + ... + 8338.

It is an arithmetic number, because the mean of its divisors is an integer number (330400).

2^1305001 is an apocalyptic number.

It is an amenable number.

1305001 is a deficient number, since it is larger than the sum of its proper divisors (16599).

1305001 is an equidigital number, since it uses as much as digits as its factorization.

1305001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16598.

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

The square root of 1305001 is about 1142.3664035676. The cubic root of 1305001 is about 109.2790593784.

The spelling of 1305001 in words is "one million, three hundred five thousand, one".