369985225 has 9 divisors (see below), whose sum is σ = 458900967. Its totient is φ = 295911240.

The previous prime is 369985181. The next prime is 369985247. The reversal of 369985225 is 522589963.

It is a happy number.

The square root of 369985225 is 19235.

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., 133194681 + 236790544 = 11541^2 + 15388^2 .

It is a de Polignac number, because none of the positive numbers 2^k-369985225 is a prime.

It is a Duffinian number.

It is an unprimeable number.

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 8 ways as a sum of consecutive naturals, for example, 94252 + ... + 98098.

Almost surely, 2^369985225 is an apocalyptic number.

369985225 is the 19235-th square number.

369985225 is the 9618-th centered octagonal number.

It is an amenable number.

369985225 is a deficient number, since it is larger than the sum of its proper divisors (88915742).

369985225 is an frugal number, since it uses more digits than its factorization.

369985225 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7704 (or 3852 counting only the distinct ones).

The product of its digits is 1166400, while the sum is 49.

The cubic root of 369985225 is about 717.8958791762.

Multiplying 369985225 by its sum of digits (49), we get a square (18129276025 = 134645²).

Multiplying 369985225 by its product of digits (1166400), we get a square (431550766440000 = 20773800²).

The spelling of 369985225 in words is "three hundred sixty-nine million, nine hundred eighty-five thousand, two hundred twenty-five".