1128138126 has 8 divisors (see below), whose sum is σ = 2256276264. Its totient is φ = 376046040.

The previous prime is 1128138107. The next prime is 1128138157. The reversal of 1128138126 is 6218318211.

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

1128138126 is an admirable number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 94011505 + ... + 94011516.

It is an arithmetic number, because the mean of its divisors is an integer number (282034533).

Almost surely, 2^1128138126 is an apocalyptic number.

1128138126 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1128138126 is a wasteful number, since it uses less digits than its factorization.

1128138126 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 188023026.

The product of its digits is 4608, while the sum is 33.

The square root of 1128138126 is about 33587.7675054476. The cubic root of 1128138126 is about 1041.0080604277.

The spelling of 1128138126 in words is "one billion, one hundred twenty-eight million, one hundred thirty-eight thousand, one hundred twenty-six".