196140025 has 9 divisors (see below), whose sum is σ = 243300493. Its totient is φ = 156856000.

The previous prime is 196139987. The next prime is 196140029. The reversal of 196140025 is 520041691.

The square root of 196140025 is 14005.

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

It can be written as a sum of positive squares in 4 ways, for example, as 3374569 + 192765456 = 1837^2 + 13884^2 .

It is not a de Polignac number, because 196140025 - 2⁹ = 196139513 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 196139975 and 196140002.

It is not an unprimeable number, because it can be changed into a prime (196140029) by changing a digit.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 68625 + ... + 71425.

Almost surely, 2^196140025 is an apocalyptic number.

196140025 is the 14005-th square number.

196140025 is the 7003-rd centered octagonal number.

It is an amenable number.

196140025 is a deficient number, since it is larger than the sum of its proper divisors (47160468).

196140025 is an frugal number, since it uses more digits than its factorization.

196140025 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5612 (or 2806 counting only the distinct ones).

The product of its (nonzero) digits is 2160, while the sum is 28.

The cubic root of 196140025 is about 581.0168695475.

The spelling of 196140025 in words is "one hundred ninety-six million, one hundred forty thousand, twenty-five".