1129278908 has 48 divisors (see below), whose sum is σ = 2204647200. Its totient is φ = 503838720.

The previous prime is 1129278901. The next prime is 1129278923. The reversal of 1129278908 is 8098729211.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1129278901) 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, 84116 + ... + 96612.

It is an arithmetic number, because the mean of its divisors is an integer number (45930150).

Almost surely, 2^1129278908 is an apocalyptic number.

It is an amenable number.

1129278908 is a deficient number, since it is larger than the sum of its proper divisors (1075368292).

1129278908 is a wasteful number, since it uses less digits than its factorization.

1129278908 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12590 (or 12588 counting only the distinct ones).

The product of its (nonzero) digits is 145152, while the sum is 47.

The square root of 1129278908 is about 33604.7453196717. The cubic root of 1129278908 is about 1041.3588340205.

The spelling of 1129278908 in words is "one billion, one hundred twenty-nine million, two hundred seventy-eight thousand, nine hundred eight".