1051001 has 12 divisors (see below), whose sum is σ = 1241460. Its totient is φ = 887040.

The previous prime is 1050997. The next prime is 1051003. The reversal of 1051001 is 1001501.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 490000 + 561001 = 700^2 + 749^2 .

It is not a de Polignac number, because 1051001 - 2² = 1050997 is a prime.

It is a super-2 number, since 2×1051001² = 2209206204002, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 1051001.

It is not an unprimeable number, because it can be changed into a prime (1051003) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 4241 + ... + 4481.

It is an arithmetic number, because the mean of its divisors is an integer number (103455).

2^1051001 is an apocalyptic number.

It is an amenable number.

1051001 is a deficient number, since it is larger than the sum of its proper divisors (190459).

1051001 is an equidigital number, since it uses as much as digits as its factorization.

1051001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 344 (or 337 counting only the distinct ones).

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

The square root of 1051001 is about 1025.1833982269. The cubic root of 1051001 is about 101.6719242406.

Adding to 1051001 its reverse (1001501), we get a palindrome (2052502).

The spelling of 1051001 in words is "one million, fifty-one thousand, one".