1242516 has 24 divisors (see below), whose sum is σ = 3163104. Its totient is φ = 376480.

The previous prime is 1242503. The next prime is 1242517. The reversal of 1242516 is 6152421.

It is a junction number, because it is equal to n+sod(n) for n = 1242492 and 1242501.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1242517) 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, 4575 + ... + 4838.

It is an arithmetic number, because the mean of its divisors is an integer number (131796).

2^1242516 is an apocalyptic number.

It is an amenable number.

1242516 is an abundant number, since it is smaller than the sum of its proper divisors (1920588).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1242516 is a wasteful number, since it uses less digits than its factorization.

1242516 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9431 (or 9429 counting only the distinct ones).

The product of its digits is 480, while the sum is 21.

The square root of 1242516 is about 1114.6820174382. The cubic root of 1242516 is about 107.5063201620.

Adding to 1242516 its reverse (6152421), we get a palindrome (7394937).

The spelling of 1242516 in words is "one million, two hundred forty-two thousand, five hundred sixteen".