1873591225 has 27 divisors (see below), whose sum is σ = 2556907311. Its totient is φ = 1360880400.

The previous prime is 1873591219. The next prime is 1873591229. The reversal of 1873591225 is 5221953781.

It is a happy number.

The square root of 1873591225 is 43285.

It is a perfect power (a square), and thus also a powerful number.

It can be written as a sum of positive squares in only one way, i.e., 674492841 + 1199098384 = 25971^2 + 34628^2 .

It is not a de Polignac number, because 1873591225 - 2⁵ = 1873591193 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1873591229) by changing a digit.

It is a polite number, since it can be written in 26 ways as a sum of consecutive naturals, for example, 2380282 + ... + 2381068.

Almost surely, 2^1873591225 is an apocalyptic number.

1873591225 is the 43285-th square number.

1873591225 is the 21643-rd centered octagonal number.

It is an amenable number.

1873591225 is a deficient number, since it is larger than the sum of its proper divisors (683316086).

1873591225 is an frugal number, since it uses more digits than its factorization.

1873591225 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1606 (or 803 counting only the distinct ones).

The product of its digits is 151200, while the sum is 43.

The cubic root of 1873591225 is about 1232.7971297499.

The spelling of 1873591225 in words is "one billion, eight hundred seventy-three million, five hundred ninety-one thousand, two hundred twenty-five".