1002305 has 4 divisors (see below), whose sum is σ = 1202772. Its totient is φ = 801840.

The previous prime is 1002299. The next prime is 1002341. The reversal of 1002305 is 5032001.

1002305 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 5032001 = 13 ⋅387077.

It can be written as a sum of positive squares in 2 ways, for example, as 583696 + 418609 = 764^2 + 647^2 .

It is not a de Polignac number, because 1002305 - 2⁴ = 1002289 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 100226 + ... + 100235.

It is an arithmetic number, because the mean of its divisors is an integer number (300693).

2^1002305 is an apocalyptic number.

It is an amenable number.

1002305 is a deficient number, since it is larger than the sum of its proper divisors (200467).

1002305 is an equidigital number, since it uses as much as digits as its factorization.

1002305 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 200466.

The product of its (nonzero) digits is 30, while the sum is 11.

The square root of 1002305 is about 1001.1518366362. The cubic root of 1002305 is about 100.0767743752.

Adding to 1002305 its reverse (5032001), we get a palindrome (6034306).

The spelling of 1002305 in words is "one million, two thousand, three hundred five".