1129949245 has 8 divisors (see below), whose sum is σ = 1373103360. Its totient is φ = 892516560.

The previous prime is 1129949239. The next prime is 1129949279. The reversal of 1129949245 is 5429499211.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 1129949245 - 2⁵ = 1129949213 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 1129949195 and 1129949204.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1429921 + ... + 1430710.

It is an arithmetic number, because the mean of its divisors is an integer number (171637920).

Almost surely, 2^1129949245 is an apocalyptic number.

It is an amenable number.

1129949245 is a deficient number, since it is larger than the sum of its proper divisors (243154115).

1129949245 is an equidigital number, since it uses as much as digits as its factorization.

1129949245 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2860715.

The product of its digits is 233280, while the sum is 46.

The square root of 1129949245 is about 33614.7176843715. The cubic root of 1129949245 is about 1041.5648425553.

The spelling of 1129949245 in words is "one billion, one hundred twenty-nine million, nine hundred forty-nine thousand, two hundred forty-five".