1042001 has 2 divisors, whose sum is σ = 1042002. Its totient is φ = 1042000.

The previous prime is 1041991. The next prime is 1042021. The reversal of 1042001 is 1002401.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1002001 + 40000 = 1001^2 + 200^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1042001 is a prime.

It is a Sophie Germain prime.

It is a Chen prime.

It is a Curzon number.

It is a nialpdrome in base 16.

It is a self number, because there is not a number n which added to its sum of digits gives 1042001.

It is not a weakly prime, because it can be changed into another prime (1042021) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 521000 + 521001.

It is an arithmetic number, because the mean of its divisors is an integer number (521001).

2^1042001 is an apocalyptic number.

It is an amenable number.

1042001 is a deficient number, since it is larger than the sum of its proper divisors (1).

1042001 is an equidigital number, since it uses as much as digits as its factorization.

1042001 is an evil number, because the sum of its binary digits is even.

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

The square root of 1042001 is about 1020.7845022335. The cubic root of 1042001 is about 101.3808773414.

Adding to 1042001 its reverse (1002401), we get a palindrome (2044402).

The spelling of 1042001 in words is "one million, forty-two thousand, one".