1225114543 has 4 divisors (see below), whose sum is σ = 1241897008. Its totient is φ = 1208332080.

The previous prime is 1225114531. The next prime is 1225114577. The reversal of 1225114543 is 3454115221.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1225114543 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1225114043) 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, 8391123 + ... + 8391268.

It is an arithmetic number, because the mean of its divisors is an integer number (310474252).

Almost surely, 2^1225114543 is an apocalyptic number.

1225114543 is a deficient number, since it is larger than the sum of its proper divisors (16782465).

1225114543 is an equidigital number, since it uses as much as digits as its factorization.

1225114543 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16782464.

The product of its digits is 4800, while the sum is 28.

The square root of 1225114543 is about 35001.6362903222. The cubic root of 1225114543 is about 1070.0208290702.

Adding to 1225114543 its reverse (3454115221), we get a palindrome (4679229764).

The spelling of 1225114543 in words is "one billion, two hundred twenty-five million, one hundred fourteen thousand, five hundred forty-three".