1001273 has 8 divisors (see below), whose sum is σ = 1232448. Its totient is φ = 792144.

The previous prime is 1001267. The next prime is 1001279. The reversal of 1001273 is 3721001.

It is an interprime number because it is at equal distance from previous prime (1001267) and next prime (1001279).

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 1001273 - 2⁸ = 1001017 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (1001279) 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, 5411 + ... + 5592.

It is an arithmetic number, because the mean of its divisors is an integer number (154056).

2^1001273 is an apocalyptic number.

1001273 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

It is an amenable number.

1001273 is a deficient number, since it is larger than the sum of its proper divisors (231175).

1001273 is a wasteful number, since it uses less digits than its factorization.

1001273 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11023.

The product of its (nonzero) digits is 42, while the sum is 14.

The square root of 1001273 is about 1000.6362975627. The cubic root of 1001273 is about 100.0424153402.

Adding to 1001273 its reverse (3721001), we get a palindrome (4722274).

The spelling of 1001273 in words is "one million, one thousand, two hundred seventy-three".