1242433625 has 16 divisors (see below), whose sum is σ = 1551582864. Its totient is φ = 993289600.

The previous prime is 1242433567. The next prime is 1242433639. The reversal of 1242433625 is 5263342421.

It can be written as a sum of positive squares in 8 ways, for example, as 345550921 + 896882704 = 18589^2 + 29948^2 .

It is not a de Polignac number, because 1242433625 - 2²⁴ = 1225656409 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1242433591 and 1242433600.

It is an unprimeable number.

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 15 ways as a sum of consecutive naturals, for example, 292517 + ... + 296733.

It is an arithmetic number, because the mean of its divisors is an integer number (96973929).

Almost surely, 2^1242433625 is an apocalyptic number.

It is an amenable number.

1242433625 is a deficient number, since it is larger than the sum of its proper divisors (309149239).

1242433625 is an equidigital number, since it uses as much as digits as its factorization.

1242433625 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6589 (or 6579 counting only the distinct ones).

The product of its digits is 34560, while the sum is 32.

The square root of 1242433625 is about 35248.1719384141. The cubic root of 1242433625 is about 1075.0394432977.

The spelling of 1242433625 in words is "one billion, two hundred forty-two million, four hundred thirty-three thousand, six hundred twenty-five".