1242693 has 6 divisors (see below), whose sum is σ = 1795014. Its totient is φ = 828456.

The previous prime is 1242643. The next prime is 1242739. The reversal of 1242693 is 3962421.

It can be written as a sum of positive squares in only one way, i.e., 675684 + 567009 = 822^2 + 753^2 .

It is not a de Polignac number, because 1242693 - 2⁶ = 1242629 is a prime.

It is a d-powerful number, because it can be written as 1 + 2⁹ + 4¹⁰ + 2¹⁷ + 6⁴ + 9⁵ + 3⁷ .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1242623) 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 5 ways as a sum of consecutive naturals, for example, 69030 + ... + 69047.

It is an arithmetic number, because the mean of its divisors is an integer number (299169).

2^1242693 is an apocalyptic number.

It is an amenable number.

1242693 is a deficient number, since it is larger than the sum of its proper divisors (552321).

1242693 is a wasteful number, since it uses less digits than its factorization.

1242693 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 138083 (or 138080 counting only the distinct ones).

The product of its digits is 2592, while the sum is 27.

The square root of 1242693 is about 1114.7614094505. The cubic root of 1242693 is about 107.5114247818.

The spelling of 1242693 in words is "one million, two hundred forty-two thousand, six hundred ninety-three".