1225927873 has 4 divisors (see below), whose sum is σ = 1227421908. Its totient is φ = 1224433840.

The previous prime is 1225927841. The next prime is 1225927889. The reversal of 1225927873 is 3787295221.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 234181809 + 991746064 = 15303^2 + 31492^2 .

It is a cyclic number.

It is not a de Polignac number, because 1225927873 - 2⁵ = 1225927841 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1225925873) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 745786 + ... + 747427.

It is an arithmetic number, because the mean of its divisors is an integer number (306855477).

Almost surely, 2^1225927873 is an apocalyptic number.

It is an amenable number.

1225927873 is a deficient number, since it is larger than the sum of its proper divisors (1494035).

1225927873 is an equidigital number, since it uses as much as digits as its factorization.

1225927873 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1494034.

The product of its digits is 423360, while the sum is 46.

The square root of 1225927873 is about 35013.2528194682. The cubic root of 1225927873 is about 1070.2575654443.

The spelling of 1225927873 in words is "one billion, two hundred twenty-five million, nine hundred twenty-seven thousand, eight hundred seventy-three".