1128333253 has 4 divisors (see below), whose sum is σ = 1128427020. Its totient is φ = 1128239488.

The previous prime is 1128333251. The next prime is 1128333337. The reversal of 1128333253 is 3523338211.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It can be written as a sum of positive squares in 2 ways, for example, as 796255524 + 332077729 = 28218^2 + 18223^2 .

It is a cyclic number.

It is not a de Polignac number, because 1128333253 - 2¹ = 1128333251 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 (1128333251) 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, 25618 + ... + 53971.

It is an arithmetic number, because the mean of its divisors is an integer number (282106755).

Almost surely, 2^1128333253 is an apocalyptic number.

It is an amenable number.

1128333253 is a deficient number, since it is larger than the sum of its proper divisors (93767).

1128333253 is an equidigital number, since it uses as much as digits as its factorization.

1128333253 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 93766.

The product of its digits is 12960, while the sum is 31.

The square root of 1128333253 is about 33590.6721129542. The cubic root of 1128333253 is about 1041.0680758534.

The spelling of 1128333253 in words is "one billion, one hundred twenty-eight million, three hundred thirty-three thousand, two hundred fifty-three".