974198610225 has 81 divisors (see below), whose sum is σ = 1807938439203. Its totient is φ = 501435204480.

The previous prime is 974198610181. The next prime is 974198610227. The reversal of 974198610225 is 522016891479.

It is a happy number.

The square root of 974198610225 is 987015.

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

974198610225 is a `hidden beast` number, since 9 + 7 + 4 + 19 + 8 + 610 + 2 + 2 + 5 = 666.

It can be written as a sum of positive squares in 13 ways, for example, as 966208395681 + 7990214544 = 982959^2 + 89388^2 .

It is not a de Polignac number, because 974198610225 - 2³¹ = 972051126577 is a prime.

It is not an unprimeable number, because it can be changed into a prime (974198610227) by changing a digit.

It is a polite number, since it can be written in 80 ways as a sum of consecutive naturals, for example, 429350391 + ... + 429352659.

Almost surely, 2^974198610225 is an apocalyptic number.

974198610225 is the 987015-th square number.

974198610225 is the 493508-th centered octagonal number.

It is an amenable number.

974198610225 is a deficient number, since it is larger than the sum of its proper divisors (833739828978).

974198610225 is an equidigital number, since it uses as much as digits as its factorization.

974198610225 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4612 (or 2306 counting only the distinct ones).

The product of its (nonzero) digits is 2177280, while the sum is 54.

The spelling of 974198610225 in words is "nine hundred seventy-four billion, one hundred ninety-eight million, six hundred ten thousand, two hundred twenty-five".