1241407 has 2 divisors, whose sum is σ = 1241408. Its totient is φ = 1241406.

The previous prime is 1241389. The next prime is 1241413. The reversal of 1241407 is 7041421.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1241407 is a prime.

It is an Ulam number.

1241407 is a lucky number.

It is a plaindrome in base 14.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1241417) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 620703 + 620704.

It is an arithmetic number, because the mean of its divisors is an integer number (620704).

2^1241407 is an apocalyptic number.

1241407 is a deficient number, since it is larger than the sum of its proper divisors (1).

1241407 is an equidigital number, since it uses as much as digits as its factorization.

1241407 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 224, while the sum is 19.

The square root of 1241407 is about 1114.1844551061. The cubic root of 1241407 is about 107.4743259402.

Adding to 1241407 its reverse (7041421), we get a palindrome (8282828).

The spelling of 1241407 in words is "one million, two hundred forty-one thousand, four hundred seven".