1254432243 has 16 divisors (see below), whose sum is σ = 1702073600. Its totient is φ = 821573280.

The previous prime is 1254432241. The next prime is 1254432247. The reversal of 1254432243 is 3422344521.

It is not a de Polignac number, because 1254432243 - 2¹ = 1254432241 is a prime.

It is a super-2 number, since 2×1254432243² = 3147200504556022098, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 1254432243.

It is not an unprimeable number, because it can be changed into a prime (1254432241) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 164448 + ... + 171906.

It is an arithmetic number, because the mean of its divisors is an integer number (106379600).

Almost surely, 2^1254432243 is an apocalyptic number.

1254432243 is a deficient number, since it is larger than the sum of its proper divisors (447641357).

1254432243 is an equidigital number, since it uses as much as digits as its factorization.

1254432243 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8442.

The product of its digits is 23040, while the sum is 30.

The square root of 1254432243 is about 35417.9649754189. The cubic root of 1254432243 is about 1078.4890402181.

Adding to 1254432243 its reverse (3422344521), we get a palindrome (4676776764).

The spelling of 1254432243 in words is "one billion, two hundred fifty-four million, four hundred thirty-two thousand, two hundred forty-three".