1242401 has 4 divisors (see below), whose sum is σ = 1254804. Its totient is φ = 1230000.

The previous prime is 1242379. The next prime is 1242403. The reversal of 1242401 is 1042421.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 1042421 = 101 ⋅10321.

It can be written as a sum of positive squares in 2 ways, for example, as 883600 + 358801 = 940^2 + 599^2 .

It is a cyclic number.

It is not a de Polignac number, because 1242401 - 2¹⁰ = 1241377 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a plaindrome in base 14.

It is not an unprimeable number, because it can be changed into a prime (1242403) 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, 6050 + ... + 6251.

It is an arithmetic number, because the mean of its divisors is an integer number (313701).

2^1242401 is an apocalyptic number.

It is an amenable number.

1242401 is a deficient number, since it is larger than the sum of its proper divisors (12403).

1242401 is a wasteful number, since it uses less digits than its factorization.

1242401 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12402.

The product of its (nonzero) digits is 64, while the sum is 14.

The square root of 1242401 is about 1114.6304320267. The cubic root of 1242401 is about 107.5030033414.

Adding to 1242401 its reverse (1042421), we get a palindrome (2284822).

The spelling of 1242401 in words is "one million, two hundred forty-two thousand, four hundred one".