196420225 has 9 divisors (see below), whose sum is σ = 243648003. Its totient is φ = 157080120.

The previous prime is 196420187. The next prime is 196420267. The reversal of 196420225 is 522024691.

The square root of 196420225 is 14015.

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., 70711281 + 125708944 = 8409^2 + 11212^2 .

It is not a de Polignac number, because 196420225 - 2²⁵ = 162865793 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, 68674 + ... + 71476.

Almost surely, 2^196420225 is an apocalyptic number.

196420225 is the 14015-th square number.

196420225 is the 7008-th centered octagonal number.

It is an amenable number.

196420225 is a deficient number, since it is larger than the sum of its proper divisors (47227778).

196420225 is an frugal number, since it uses more digits than its factorization.

196420225 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5616 (or 2808 counting only the distinct ones).

The product of its (nonzero) digits is 8640, while the sum is 31.

The cubic root of 196420225 is about 581.2934125667.

The spelling of 196420225 in words is "one hundred ninety-six million, four hundred twenty thousand, two hundred twenty-five".