1122513253 has 4 divisors (see below), whose sum is σ = 1123868140. Its totient is φ = 1121158368.

The previous prime is 1122513233. The next prime is 1122513257. The reversal of 1122513253 is 3523152211.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 3523152211 = 83 ⋅42447617.

It can be written as a sum of positive squares in 2 ways, for example, as 851647489 + 270865764 = 29183^2 + 16458^2 .

It is a cyclic number.

It is not a de Polignac number, because 1122513253 - 2⁵ = 1122513221 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 (1122513257) 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, 676200 + ... + 677857.

It is an arithmetic number, because the mean of its divisors is an integer number (280967035).

Almost surely, 2^1122513253 is an apocalyptic number.

It is an amenable number.

1122513253 is a deficient number, since it is larger than the sum of its proper divisors (1354887).

1122513253 is an equidigital number, since it uses as much as digits as its factorization.

1122513253 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1354886.

The product of its digits is 1800, while the sum is 25.

The square root of 1122513253 is about 33503.9289188597. The cubic root of 1122513253 is about 1039.2750288343.

Adding to 1122513253 its reverse (3523152211), we get a palindrome (4645665464).

The spelling of 1122513253 in words is "one billion, one hundred twenty-two million, five hundred thirteen thousand, two hundred fifty-three".