1230001 has 4 divisors (see below), whose sum is σ = 1302372. Its totient is φ = 1157632.

The previous prime is 1229999. The next prime is 1230013. The reversal of 1230001 is 1000321.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 1000321 = 7 ⋅142903.

It can be written as a sum of positive squares in 2 ways, for example, as 1100401 + 129600 = 1049^2 + 360^2 .

It is not a de Polignac number, because 1230001 - 2¹ = 1229999 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1230071) 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, 36160 + ... + 36193.

It is an arithmetic number, because the mean of its divisors is an integer number (325593).

2^1230001 is an apocalyptic number.

It is an amenable number.

1230001 is a deficient number, since it is larger than the sum of its proper divisors (72371).

1230001 is an equidigital number, since it uses as much as digits as its factorization.

1230001 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 72370.

The product of its (nonzero) digits is 6, while the sum is 7.

The square root of 1230001 is about 1109.0541014757. The cubic root of 1230001 is about 107.1441560054.

Adding to 1230001 its reverse (1000321), we get a palindrome (2230322).

The spelling of 1230001 in words is "one million, two hundred thirty thousand, one".