1225254243 has 8 divisors (see below), whose sum is σ = 1729770768. Its totient is φ = 768786944.

The previous prime is 1225254221. The next prime is 1225254253. The reversal of 1225254243 is 3424525221.

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 1225254243 - 2⁸ = 1225253987 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 1225254243.

It is not an unprimeable number, because it can be changed into a prime (1225254253) 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, 12012246 + ... + 12012347.

It is an arithmetic number, because the mean of its divisors is an integer number (216221346).

Almost surely, 2^1225254243 is an apocalyptic number.

1225254243 is a deficient number, since it is larger than the sum of its proper divisors (504516525).

1225254243 is a wasteful number, since it uses less digits than its factorization.

1225254243 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24024613.

The product of its digits is 19200, while the sum is 30.

The square root of 1225254243 is about 35003.6318544233. The cubic root of 1225254243 is about 1070.0614990710.

Adding to 1225254243 its reverse (3424525221), we get a palindrome (4649779464).

The spelling of 1225254243 in words is "one billion, two hundred twenty-five million, two hundred fifty-four thousand, two hundred forty-three".