1129931757 has 12 divisors (see below), whose sum is σ = 1648950940. Its totient is φ = 745521408.

The previous prime is 1129931689. The next prime is 1129931779. The reversal of 1129931757 is 7571399211.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 882624681 + 247307076 = 29709^2 + 15726^2 .

It is a de Polignac number, because none of the positive numbers 2^k-1129931757 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 (1129931057) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 646282 + ... + 648027.

Almost surely, 2^1129931757 is an apocalyptic number.

It is an amenable number.

1129931757 is a deficient number, since it is larger than the sum of its proper divisors (519019183).

1129931757 is a wasteful number, since it uses less digits than its factorization.

1129931757 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1294412 (or 1294409 counting only the distinct ones).

The product of its digits is 119070, while the sum is 45.

The square root of 1129931757 is about 33614.4575592110. The cubic root of 1129931757 is about 1041.5594691636.

The spelling of 1129931757 in words is "one billion, one hundred twenty-nine million, nine hundred thirty-one thousand, seven hundred fifty-seven".