1001051 has 4 divisors (see below), whose sum is σ = 1035600. Its totient is φ = 966504.

The previous prime is 1001041. The next prime is 1001069. The reversal of 1001051 is 1501001.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 1001051 - 2¹⁴ = 984667 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1001041) 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, 17231 + ... + 17288.

It is an arithmetic number, because the mean of its divisors is an integer number (258900).

2^1001051 is an apocalyptic number.

1001051 is a deficient number, since it is larger than the sum of its proper divisors (34549).

1001051 is an equidigital number, since it uses as much as digits as its factorization.

1001051 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 34548.

The product of its (nonzero) digits is 5, while the sum is 8.

The square root of 1001051 is about 1000.5253619974. The cubic root of 1001051 is about 100.0350210672.

Adding to 1001051 its reverse (1501001), we get a palindrome (2502052).

The spelling of 1001051 in words is "one million, one thousand, fifty-one".