1124551243 has 4 divisors (see below), whose sum is σ = 1124882248. Its totient is φ = 1124220240.

The previous prime is 1124551237. The next prime is 1124551247. The reversal of 1124551243 is 3421554211.

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-1124551243 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1124551247) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 160353 + ... + 167218.

It is an arithmetic number, because the mean of its divisors is an integer number (281220562).

Almost surely, 2^1124551243 is an apocalyptic number.

1124551243 is a deficient number, since it is larger than the sum of its proper divisors (331005).

1124551243 is an equidigital number, since it uses as much as digits as its factorization.

1124551243 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 331004.

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

The square root of 1124551243 is about 33534.3293208616. The cubic root of 1124551243 is about 1039.9036039230.

The spelling of 1124551243 in words is "one billion, one hundred twenty-four million, five hundred fifty-one thousand, two hundred forty-three".