1128052481 has 4 divisors (see below), whose sum is σ = 1136934912. Its totient is φ = 1119170052.

The previous prime is 1128052441. The next prime is 1128052487. The reversal of 1128052481 is 1842508211.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 1128052481 - 2¹⁸ = 1127790337 is a prime.

It is a super-2 number, since 2×1128052481² = 2545004799780510722, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1128052487) 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, 4441025 + ... + 4441278.

It is an arithmetic number, because the mean of its divisors is an integer number (284233728).

Almost surely, 2^1128052481 is an apocalyptic number.

It is an amenable number.

1128052481 is a deficient number, since it is larger than the sum of its proper divisors (8882431).

1128052481 is an equidigital number, since it uses as much as digits as its factorization.

1128052481 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8882430.

The product of its (nonzero) digits is 5120, while the sum is 32.

The square root of 1128052481 is about 33586.4925379236. The cubic root of 1128052481 is about 1040.9817163157.

The spelling of 1128052481 in words is "one billion, one hundred twenty-eight million, fifty-two thousand, four hundred eighty-one".