1243401 has 4 divisors (see below), whose sum is σ = 1657872. Its totient is φ = 828932.

The previous prime is 1243393. The next prime is 1243421. The reversal of 1243401 is 1043421.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 1243401 - 2³ = 1243393 is a prime.

It is a D-number.

It is not an unprimeable number, because it can be changed into a prime (1243421) 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, 207231 + ... + 207236.

It is an arithmetic number, because the mean of its divisors is an integer number (414468).

2^1243401 is an apocalyptic number.

It is an amenable number.

1243401 is a deficient number, since it is larger than the sum of its proper divisors (414471).

1243401 is an equidigital number, since it uses as much as digits as its factorization.

1243401 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 414470.

The product of its (nonzero) digits is 96, while the sum is 15.

The square root of 1243401 is about 1115.0789209738. The cubic root of 1243401 is about 107.5318384151.

Adding to 1243401 its reverse (1043421), we get a palindrome (2286822).

The spelling of 1243401 in words is "one million, two hundred forty-three thousand, four hundred one".