1243454241 has 8 divisors (see below), whose sum is σ = 1658150784. Its totient is φ = 828863600.

The previous prime is 1243454209. The next prime is 1243454243. The reversal of 1243454241 is 1424543421.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 1243454241 - 2⁵ = 1243454209 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 1243454199 and 1243454208.

It is not an unprimeable number, because it can be changed into a prime (1243454243) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6955 + ... + 50351.

It is an arithmetic number, because the mean of its divisors is an integer number (207268848).

Almost surely, 2^1243454241 is an apocalyptic number.

It is an amenable number.

1243454241 is a deficient number, since it is larger than the sum of its proper divisors (414696543).

1243454241 is an equidigital number, since it uses as much as digits as its factorization.

1243454241 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 52951.

The product of its digits is 15360, while the sum is 30.

The square root of 1243454241 is about 35262.6465399295. The cubic root of 1243454241 is about 1075.3337318975. Note that the first 3 decimals are identical.

Adding to 1243454241 its reverse (1424543421), we get a palindrome (2667997662).

The spelling of 1243454241 in words is "one billion, two hundred forty-three million, four hundred fifty-four thousand, two hundred forty-one".