1129227671 has 16 divisors (see below), whose sum is σ = 1329867168. Its totient is φ = 945302400.

The previous prime is 1129227667. The next prime is 1129227707. The reversal of 1129227671 is 1767229211.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 1129227671 - 2² = 1129227667 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 (1129227611) 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, 50825 + ... + 69581.

It is an arithmetic number, because the mean of its divisors is an integer number (83116698).

Almost surely, 2^1129227671 is an apocalyptic number.

1129227671 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

1129227671 is a deficient number, since it is larger than the sum of its proper divisors (200639497).

1129227671 is a wasteful number, since it uses less digits than its factorization.

1129227671 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19202.

The product of its digits is 21168, while the sum is 38.

The square root of 1129227671 is about 33603.9829633334. The cubic root of 1129227671 is about 1041.3430844688.

The spelling of 1129227671 in words is "one billion, one hundred twenty-nine million, two hundred twenty-seven thousand, six hundred seventy-one".