1242235 has 4 divisors (see below), whose sum is σ = 1490688. Its totient is φ = 993784.

The previous prime is 1242233. The next prime is 1242251. The reversal of 1242235 is 5322421.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 1242235 - 2¹ = 1242233 is a prime.

It is a d-powerful number, because it can be written as 1 + 2 + 4⁷ + 2¹⁹ + 2¹⁹ + 3¹¹ + 5³ .

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1242233) 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 in 3 ways as a sum of consecutive naturals, for example, 124219 + ... + 124228.

It is an arithmetic number, because the mean of its divisors is an integer number (372672).

2^1242235 is an apocalyptic number.

1242235 is a deficient number, since it is larger than the sum of its proper divisors (248453).

1242235 is an equidigital number, since it uses as much as digits as its factorization.

1242235 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 248452.

The product of its digits is 480, while the sum is 19.

The square root of 1242235 is about 1114.5559653961. Note that the first 3 decimals coincide. The cubic root of 1242235 is about 107.4982152219.

Adding to 1242235 its reverse (5322421), we get a palindrome (6564656).

It can be divided in two parts, 124 and 2235, that multiplied together give a triangular number (277140 = T₇₄₄).

The spelling of 1242235 in words is "one million, two hundred forty-two thousand, two hundred thirty-five".