1128734149 has 8 divisors (see below), whose sum is σ = 1165842432. Its totient is φ = 1091669520.

The previous prime is 1128734147. The next prime is 1128734183. The reversal of 1128734149 is 9414378211.

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

It is a cyclic number.

It is not a de Polignac number, because 1128734149 - 2¹ = 1128734147 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 (1128734147) 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, 46527 + ... + 66499.

It is an arithmetic number, because the mean of its divisors is an integer number (145730304).

Almost surely, 2^1128734149 is an apocalyptic number.

It is an amenable number.

1128734149 is a deficient number, since it is larger than the sum of its proper divisors (37108283).

1128734149 is a wasteful number, since it uses less digits than its factorization.

1128734149 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21827.

The product of its digits is 48384, while the sum is 40.

The square root of 1128734149 is about 33596.6389539192. The cubic root of 1128734149 is about 1041.1913581688.

The spelling of 1128734149 in words is "one billion, one hundred twenty-eight million, seven hundred thirty-four thousand, one hundred forty-nine".