1131426634 has 16 divisors (see below), whose sum is σ = 1829205000. Its totient is φ = 521763840.

The previous prime is 1131426631. The next prime is 1131426671. The reversal of 1131426634 is 4366241311.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 513158409 + 618268225 = 22653^2 + 24865^2 .

It is a junction number, because it is equal to n+sod(n) for n = 1131426596 and 1131426605.

It is not an unprimeable number, because it can be changed into a prime (1131426631) 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 7 ways as a sum of consecutive naturals, for example, 15054 + ... + 49894.

Almost surely, 2^1131426634 is an apocalyptic number.

1131426634 is a deficient number, since it is larger than the sum of its proper divisors (697778366).

1131426634 is a wasteful number, since it uses less digits than its factorization.

1131426634 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 36105.

The product of its digits is 10368, while the sum is 31.

The square root of 1131426634 is about 33636.6858355576. The cubic root of 1131426634 is about 1042.0185875015.

Adding to 1131426634 its reverse (4366241311), we get a palindrome (5497667945).

The spelling of 1131426634 in words is "one billion, one hundred thirty-one million, four hundred twenty-six thousand, six hundred thirty-four".