1129218908 has 12 divisors (see below), whose sum is σ = 1977989160. Its totient is φ = 564079152.

The previous prime is 1129218869. The next prime is 1129218929. The reversal of 1129218908 is 8098129211.

It is a happy number.

It is a hoax number, since the sum of its digits (41) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 127766 + ... + 136317.

It is an arithmetic number, because the mean of its divisors is an integer number (164832430).

Almost surely, 2^1129218908 is an apocalyptic number.

It is an amenable number.

1129218908 is a deficient number, since it is larger than the sum of its proper divisors (848770252).

1129218908 is a wasteful number, since it uses less digits than its factorization.

1129218908 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 265156 (or 265154 counting only the distinct ones).

The product of its (nonzero) digits is 20736, while the sum is 41.

The square root of 1129218908 is about 33603.8525767508. The cubic root of 1129218908 is about 1041.3403907950.

The spelling of 1129218908 in words is "one billion, one hundred twenty-nine million, two hundred eighteen thousand, nine hundred eight".