1129195227 has 16 divisors (see below), whose sum is σ = 1554481152. Its totient is φ = 728642880.

The previous prime is 1129195219. The next prime is 1129195261. The reversal of 1129195227 is 7225919211.

1129195227 is digitally balanced in base 4, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 1129195227 - 2³ = 1129195219 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1129195297) 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, 20523 + ... + 51764.

It is an arithmetic number, because the mean of its divisors is an integer number (97155072).

Almost surely, 2^1129195227 is an apocalyptic number.

1129195227 is a deficient number, since it is larger than the sum of its proper divisors (425285925).

1129195227 is a wasteful number, since it uses less digits than its factorization.

1129195227 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 72458.

The product of its digits is 22680, while the sum is 39.

The square root of 1129195227 is about 33603.5002194712. The cubic root of 1129195227 is about 1041.3331113815. Note that the first 3 decimals are identical.

The spelling of 1129195227 in words is "one billion, one hundred twenty-nine million, one hundred ninety-five thousand, two hundred twenty-seven".