1122724523 has 4 divisors (see below), whose sum is σ = 1188767160. Its totient is φ = 1056681888.

The previous prime is 1122724513. The next prime is 1122724529. The reversal of 1122724523 is 3254272211.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 3254272211 = 37 ⋅87953303.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1122724523 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1122724529) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 33021293 + ... + 33021326.

It is an arithmetic number, because the mean of its divisors is an integer number (297191790).

Almost surely, 2^1122724523 is an apocalyptic number.

1122724523 is a deficient number, since it is larger than the sum of its proper divisors (66042637).

1122724523 is an equidigital number, since it uses as much as digits as its factorization.

1122724523 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 66042636.

The product of its digits is 6720, while the sum is 29.

The square root of 1122724523 is about 33507.0816843246. The cubic root of 1122724523 is about 1039.3402259448.

Adding to 1122724523 its reverse (3254272211), we get a palindrome (4376996734).

The spelling of 1122724523 in words is "one billion, one hundred twenty-two million, seven hundred twenty-four thousand, five hundred twenty-three".