1128190461 has 8 divisors (see below), whose sum is σ = 1508183040. Its totient is φ = 750162432.

The previous prime is 1128190429. The next prime is 1128190463. The reversal of 1128190461 is 1640918211.

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

It is not a de Polignac number, because 1128190461 - 2⁵ = 1128190429 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1128190463) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 489796 + ... + 492093.

It is an arithmetic number, because the mean of its divisors is an integer number (188522880).

Almost surely, 2^1128190461 is an apocalyptic number.

It is an amenable number.

1128190461 is a deficient number, since it is larger than the sum of its proper divisors (379992579).

1128190461 is an equidigital number, since it uses as much as digits as its factorization.

1128190461 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 982275.

The product of its (nonzero) digits is 3456, while the sum is 33.

The square root of 1128190461 is about 33588.5465746882. The cubic root of 1128190461 is about 1041.0241578402.

The spelling of 1128190461 in words is "one billion, one hundred twenty-eight million, one hundred ninety thousand, four hundred sixty-one".