1129938277 has 6 divisors (see below), whose sum is σ = 1216987142. Its totient is φ = 1042908072.

The previous prime is 1129938259. The next prime is 1129938283. The reversal of 1129938277 is 7728399211.

It can be written as a sum of positive squares in only one way, i.e., 782264961 + 347673316 = 27969^2 + 18646^2 .

It is not a de Polignac number, because 1129938277 - 2²³ = 1121549669 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 1129938277.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1129938247) 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 5 ways as a sum of consecutive naturals, for example, 116538 + ... + 125860.

Almost surely, 2^1129938277 is an apocalyptic number.

It is an amenable number.

1129938277 is a deficient number, since it is larger than the sum of its proper divisors (87048865).

1129938277 is an frugal number, since it uses more digits than its factorization.

1129938277 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18659 (or 9336 counting only the distinct ones).

The product of its digits is 381024, while the sum is 49.

The square root of 1129938277 is about 33614.5545411508. The cubic root of 1129938277 is about 1041.5614725160.

The spelling of 1129938277 in words is "one billion, one hundred twenty-nine million, nine hundred thirty-eight thousand, two hundred seventy-seven".