197538925 has 12 divisors (see below), whose sum is σ = 245130516. Its totient is φ = 157913600.

The previous prime is 197538919. The next prime is 197538941. The reversal of 197538925 is 529835791.

It can be written as a sum of positive squares in 6 ways, for example, as 51926436 + 145612489 = 7206^2 + 12067^2 .

It is not a de Polignac number, because 197538925 - 2³ = 197538917 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 50127 + ... + 53923.

It is an arithmetic number, because the mean of its divisors is an integer number (20427543).

Almost surely, 2^197538925 is an apocalyptic number.

It is an amenable number.

197538925 is a deficient number, since it is larger than the sum of its proper divisors (47591591).

197538925 is a wasteful number, since it uses less digits than its factorization.

197538925 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5888 (or 5883 counting only the distinct ones).

The product of its digits is 680400, while the sum is 49.

The square root of 197538925 is about 14054.8541436758. The cubic root of 197538925 is about 582.3948983626.

The spelling of 197538925 in words is "one hundred ninety-seven million, five hundred thirty-eight thousand, nine hundred twenty-five".