1126631979 has 12 divisors (see below), whose sum is σ = 1775299032. Its totient is φ = 682807200.

The previous prime is 1126631969. The next prime is 1126631983. The reversal of 1126631979 is 9791366211.

1126631979 is a `hidden beast` number, since 1 + 1 + 2 + 6 + 631 + 9 + 7 + 9 = 666.

It is not a de Polignac number, because 1126631979 - 2¹³ = 1126623787 is a prime.

It is a super-4 number, since 4×1126631979⁴ (a number of 37 digits) contains 4444 as substring. Note that it is a super-d number also for d = 2.

It is not an unprimeable number, because it can be changed into a prime (1126631929) 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 11 ways as a sum of consecutive naturals, for example, 5689962 + ... + 5690159.

It is an arithmetic number, because the mean of its divisors is an integer number (147941586).

Almost surely, 2^1126631979 is an apocalyptic number.

1126631979 is a deficient number, since it is larger than the sum of its proper divisors (648667053).

1126631979 is a wasteful number, since it uses less digits than its factorization.

1126631979 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11380138 (or 11380135 counting only the distinct ones).

The product of its digits is 122472, while the sum is 45.

The square root of 1126631979 is about 33565.3389525564. The cubic root of 1126631979 is about 1040.5445801121.

The spelling of 1126631979 in words is "one billion, one hundred twenty-six million, six hundred thirty-one thousand, nine hundred seventy-nine".