1869265225 has 9 divisors (see below), whose sum is σ = 2318156967. Its totient is φ = 1495239240.

The previous prime is 1869265183. The next prime is 1869265231. The reversal of 1869265225 is 5225629681.

It is a happy number.

The square root of 1869265225 is 43235.

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., 672935481 + 1196329744 = 25941^2 + 34588^2 .

It is not a de Polignac number, because 1869265225 - 2⁹ = 1869264713 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 211852 + ... + 220498.

Almost surely, 2^1869265225 is an apocalyptic number.

1869265225 is the 43235-th square number.

1869265225 is the 21618-th centered octagonal number.

It is an amenable number.

1869265225 is a deficient number, since it is larger than the sum of its proper divisors (448891742).

1869265225 is an frugal number, since it uses more digits than its factorization.

1869265225 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17304 (or 8652 counting only the distinct ones).

The product of its digits is 518400, while the sum is 46.

The cubic root of 1869265225 is about 1231.8475824912.

Multiplying 1869265225 by its product of digits (518400), we get a square (969027092640000 = 31129200²).

The spelling of 1869265225 in words is "one billion, eight hundred sixty-nine million, two hundred sixty-five thousand, two hundred twenty-five".