1129135903 has 16 divisors (see below), whose sum is σ = 1392137280. Its totient is φ = 893707776.

The previous prime is 1129135883. The next prime is 1129135913. The reversal of 1129135903 is 3095319211.

It is a cyclic number.

It is not a de Polignac number, because 1129135903 - 2¹⁷ = 1129004831 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 (1129135913) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 83208 + ... + 95821.

It is an arithmetic number, because the mean of its divisors is an integer number (87008580).

Almost surely, 2^1129135903 is an apocalyptic number.

1129135903 is a deficient number, since it is larger than the sum of its proper divisors (263001377).

1129135903 is a wasteful number, since it uses less digits than its factorization.

1129135903 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 179106.

The product of its (nonzero) digits is 7290, while the sum is 34.

The square root of 1129135903 is about 33602.6175022125. The cubic root of 1129135903 is about 1041.3148750524.

The spelling of 1129135903 in words is "one billion, one hundred twenty-nine million, one hundred thirty-five thousand, nine hundred three".