1121450253 has 16 divisors (see below), whose sum is σ = 1864229376. Its totient is φ = 582571440.

The previous prime is 1121450249. The next prime is 1121450263. The reversal of 1121450253 is 3520541211.

It is a happy number.

It is not a de Polignac number, because 1121450253 - 2² = 1121450249 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1121450233) 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 15 ways as a sum of consecutive naturals, for example, 2427151 + ... + 2427612.

It is an arithmetic number, because the mean of its divisors is an integer number (116514336).

Almost surely, 2^1121450253 is an apocalyptic number.

It is an amenable number.

1121450253 is a deficient number, since it is larger than the sum of its proper divisors (742779123).

1121450253 is a wasteful number, since it uses less digits than its factorization.

1121450253 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4854784.

The product of its (nonzero) digits is 1200, while the sum is 24.

The square root of 1121450253 is about 33488.0613502783. The cubic root of 1121450253 is about 1038.9468669285.

Adding to 1121450253 its reverse (3520541211), we get a palindrome (4641991464).

The spelling of 1121450253 in words is "one billion, one hundred twenty-one million, four hundred fifty thousand, two hundred fifty-three".