1128461393 has 4 divisors (see below), whose sum is σ = 1129379328. Its totient is φ = 1127543460.

The previous prime is 1128461371. The next prime is 1128461423. The reversal of 1128461393 is 3931648211.

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 1128461393 - 2⁶ = 1128461329 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1128461093) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 457121 + ... + 459582.

It is an arithmetic number, because the mean of its divisors is an integer number (282344832).

Almost surely, 2^1128461393 is an apocalyptic number.

It is an amenable number.

1128461393 is a deficient number, since it is larger than the sum of its proper divisors (917935).

1128461393 is an equidigital number, since it uses as much as digits as its factorization.

1128461393 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 917934.

The product of its digits is 31104, while the sum is 38.

The square root of 1128461393 is about 33592.5794335594. The cubic root of 1128461393 is about 1041.1074842502.

The spelling of 1128461393 in words is "one billion, one hundred twenty-eight million, four hundred sixty-one thousand, three hundred ninety-three".