1129445223 has 16 divisors (see below), whose sum is σ = 1559347200. Its totient is φ = 726303200.

The previous prime is 1129445221. The next prime is 1129445237. The reversal of 1129445223 is 3225449211.

It is a cyclic number.

It is not a de Polignac number, because 1129445223 - 2¹ = 1129445221 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1129445221) 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, 94498 + ... + 105776.

It is an arithmetic number, because the mean of its divisors is an integer number (97459200).

Almost surely, 2^1129445223 is an apocalyptic number.

1129445223 is a deficient number, since it is larger than the sum of its proper divisors (429901977).

1129445223 is a wasteful number, since it uses less digits than its factorization.

1129445223 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12462.

The product of its digits is 17280, while the sum is 33.

The square root of 1129445223 is about 33607.2198046789. The cubic root of 1129445223 is about 1041.4099536898.

The spelling of 1129445223 in words is "one billion, one hundred twenty-nine million, four hundred forty-five thousand, two hundred twenty-three".