1129671258 has 16 divisors (see below), whose sum is σ = 2378255520. Its totient is φ = 356738256.

The previous prime is 1129671253. The next prime is 1129671259. The reversal of 1129671258 is 8521769211.

It is not an unprimeable number, because it can be changed into a prime (1129671253) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4954585 + ... + 4954812.

It is an arithmetic number, because the mean of its divisors is an integer number (148640970).

Almost surely, 2^1129671258 is an apocalyptic number.

1129671258 is an abundant number, since it is smaller than the sum of its proper divisors (1248584262).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1129671258 is a wasteful number, since it uses less digits than its factorization.

1129671258 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9909421.

The product of its digits is 60480, while the sum is 42.

The square root of 1129671258 is about 33610.5825299116. The cubic root of 1129671258 is about 1041.4794212456.

The spelling of 1129671258 in words is "one billion, one hundred twenty-nine million, six hundred seventy-one thousand, two hundred fifty-eight".