1228590873 has 6 divisors (see below), whose sum is σ = 1774631274. Its totient is φ = 819060576.

The previous prime is 1228590851. The next prime is 1228590907. The reversal of 1228590873 is 3780958221.

It is a happy number.

1228590873 is digitally balanced in base 4, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in only one way, i.e., 695535129 + 533055744 = 26373^2 + 23088^2 .

It is not a de Polignac number, because 1228590873 - 2⁵ = 1228590841 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1228590173) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 68255040 + ... + 68255057.

It is an arithmetic number, because the mean of its divisors is an integer number (295771879).

Almost surely, 2^1228590873 is an apocalyptic number.

It is an amenable number.

1228590873 is a deficient number, since it is larger than the sum of its proper divisors (546040401).

1228590873 is a wasteful number, since it uses less digits than its factorization.

1228590873 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 136510103 (or 136510100 counting only the distinct ones).

The product of its (nonzero) digits is 241920, while the sum is 45.

The square root of 1228590873 is about 35051.2606477998. The cubic root of 1228590873 is about 1071.0319543124.

The spelling of 1228590873 in words is "one billion, two hundred twenty-eight million, five hundred ninety thousand, eight hundred seventy-three".