1242506 has 8 divisors (see below), whose sum is σ = 1944864. Its totient is φ = 594220.

The previous prime is 1242503. The next prime is 1242517. The reversal of 1242506 is 6052421.

It is a happy number.

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

It is not an unprimeable number, because it can be changed into a prime (1242503) 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 3 ways as a sum of consecutive naturals, for example, 13460 + ... + 13551.

It is an arithmetic number, because the mean of its divisors is an integer number (243108).

2^1242506 is an apocalyptic number.

1242506 is a deficient number, since it is larger than the sum of its proper divisors (702358).

1242506 is a wasteful number, since it uses less digits than its factorization.

1242506 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 27036.

The product of its (nonzero) digits is 480, while the sum is 20.

The square root of 1242506 is about 1114.6775318450. The cubic root of 1242506 is about 107.5060317510.

Adding to 1242506 its reverse (6052421), we get a palindrome (7294927).

The spelling of 1242506 in words is "one million, two hundred forty-two thousand, five hundred six".