1242313 has 8 divisors (see below), whose sum is σ = 1286208. Its totient is φ = 1199184.

The previous prime is 1242289. The next prime is 1242317. The reversal of 1242313 is 3132421.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a de Polignac number, because none of the positive numbers 2^k-1242313 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1242317) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 7095 + ... + 7267.

It is an arithmetic number, because the mean of its divisors is an integer number (160776).

2^1242313 is an apocalyptic number.

It is an amenable number.

1242313 is a deficient number, since it is larger than the sum of its proper divisors (43895).

1242313 is a wasteful number, since it uses less digits than its factorization.

1242313 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 383.

The product of its digits is 144, while the sum is 16.

The square root of 1242313 is about 1114.5909563602. The cubic root of 1242313 is about 107.5004651143.

Adding to 1242313 its reverse (3132421), we get a palindrome (4374734).

The spelling of 1242313 in words is "one million, two hundred forty-two thousand, three hundred thirteen".