1128654851 has 8 divisors (see below), whose sum is σ = 1189853184. Its totient is φ = 1069005960.

The previous prime is 1128654817. The next prime is 1128654887. The reversal of 1128654851 is 1584568211.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1128654851 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1128654799 and 1128654808.

It is not an unprimeable number, because it can be changed into a prime (1128654251) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 385865 + ... + 388778.

It is an arithmetic number, because the mean of its divisors is an integer number (148731648).

Almost surely, 2^1128654851 is an apocalyptic number.

1128654851 is a deficient number, since it is larger than the sum of its proper divisors (61198333).

1128654851 is an equidigital number, since it uses as much as digits as its factorization.

1128654851 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 774721.

The product of its digits is 76800, while the sum is 41.

The square root of 1128654851 is about 33595.4587853775. The cubic root of 1128654851 is about 1041.1669750059.

The spelling of 1128654851 in words is "one billion, one hundred twenty-eight million, six hundred fifty-four thousand, eight hundred fifty-one".