1001395 has 16 divisors (see below), whose sum is σ = 1290240. Its totient is φ = 743904.

The previous prime is 1001389. The next prime is 1001401. The reversal of 1001395 is 5931001.

It is an interprime number because it is at equal distance from previous prime (1001389) and next prime (1001401).

It is a cyclic number.

It is not a de Polignac number, because 1001395 - 2³ = 1001387 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (19).

1001395 is a lucky number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 7822 + ... + 7948.

It is an arithmetic number, because the mean of its divisors is an integer number (80640).

2^1001395 is an apocalyptic number.

1001395 is a deficient number, since it is larger than the sum of its proper divisors (288845).

1001395 is a wasteful number, since it uses less digits than its factorization.

1001395 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 234.

The product of its (nonzero) digits is 135, while the sum is 19.

The square root of 1001395 is about 1000.6972569164. The cubic root of 1001395 is about 100.0464783942.

Adding to 1001395 its reverse (5931001), we get a palindrome (6932396).

The spelling of 1001395 in words is "one million, one thousand, three hundred ninety-five".