1229790275 has 24 divisors (see below), whose sum is σ = 1789900320. Its totient is φ = 820488960.

The previous prime is 1229790271. The next prime is 1229790301. The reversal of 1229790275 is 5720979221.

It is not a de Polignac number, because 1229790275 - 2² = 1229790271 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1229790271) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 88490 + ... + 101439.

It is an arithmetic number, because the mean of its divisors is an integer number (74579180).

Almost surely, 2^1229790275 is an apocalyptic number.

1229790275 is a deficient number, since it is larger than the sum of its proper divisors (560110045).

1229790275 is a wasteful number, since it uses less digits than its factorization.

1229790275 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 189983 (or 189978 counting only the distinct ones).

The product of its (nonzero) digits is 158760, while the sum is 44.

The square root of 1229790275 is about 35068.3657303844. The cubic root of 1229790275 is about 1071.3803697469.

The spelling of 1229790275 in words is "one billion, two hundred twenty-nine million, seven hundred ninety thousand, two hundred seventy-five".