1240007 has 2 divisors, whose sum is σ = 1240008. Its totient is φ = 1240006.

The previous prime is 1239989. The next prime is 1240009. The reversal of 1240007 is 7000421.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 1240007 - 2⁶ = 1239943 is a prime.

Together with 1240009, it forms a pair of twin primes.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 1239973 and 1240000.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1240009) 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, 620003 + 620004.

It is an arithmetic number, because the mean of its divisors is an integer number (620004).

2^1240007 is an apocalyptic number.

1240007 is a deficient number, since it is larger than the sum of its proper divisors (1).

1240007 is an equidigital number, since it uses as much as digits as its factorization.

1240007 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 56, while the sum is 14.

The square root of 1240007 is about 1113.5560156544. The cubic root of 1240007 is about 107.4339092587.

Adding to 1240007 its reverse (7000421), we get a palindrome (8240428).

It can be divided in two parts, 12 and 40007, that multiplied together give a palindrome (480084).

The spelling of 1240007 in words is "one million, two hundred forty thousand, seven".