1126131669 has 36 divisors (see below), whose sum is σ = 1767416196. Its totient is φ = 690947712.

The previous prime is 1126131661. The next prime is 1126131673. The reversal of 1126131669 is 9661316211.

It can be written as a sum of positive squares in 6 ways, for example, as 1020802500 + 105329169 = 31950^2 + 10263^2 .

It is not a de Polignac number, because 1126131669 - 2³ = 1126131661 is a prime.

It is a super-2 number, since 2×1126131669² = 2536345071849451122, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1126131661) by changing a digit.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 3341469 + ... + 3341805.

Almost surely, 2^1126131669 is an apocalyptic number.

It is an amenable number.

1126131669 is a deficient number, since it is larger than the sum of its proper divisors (641284527).

1126131669 is an frugal number, since it uses more digits than its factorization.

1126131669 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 408 (or 353 counting only the distinct ones).

The product of its digits is 11664, while the sum is 36.

The square root of 1126131669 is about 33557.8853475603. The cubic root of 1126131669 is about 1040.3905304169.

The spelling of 1126131669 in words is "one billion, one hundred twenty-six million, one hundred thirty-one thousand, six hundred sixty-nine".