1254264243 has 4 divisors (see below), whose sum is σ = 1672352328. Its totient is φ = 836176160.

The previous prime is 1254264229. The next prime is 1254264259. The reversal of 1254264243 is 3424624521.

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 1254264243 - 2⁸ = 1254263987 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1254264283) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 209044038 + ... + 209044043.

It is an arithmetic number, because the mean of its divisors is an integer number (418088082).

Almost surely, 2^1254264243 is an apocalyptic number.

1254264243 is a deficient number, since it is larger than the sum of its proper divisors (418088085).

1254264243 is an equidigital number, since it uses as much as digits as its factorization.

1254264243 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 418088084.

The product of its digits is 46080, while the sum is 33.

The square root of 1254264243 is about 35415.5932182422. The cubic root of 1254264243 is about 1078.4408924740.

Adding to 1254264243 its reverse (3424624521), we get a palindrome (4678888764).

The spelling of 1254264243 in words is "one billion, two hundred fifty-four million, two hundred sixty-four thousand, two hundred forty-three".