195854537 has 2 divisors, whose sum is σ = 195854538. Its totient is φ = 195854536.

The previous prime is 195854531. The next prime is 195854597. The reversal of 195854537 is 735458591.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 137851081 + 58003456 = 11741^2 + 7616^2 .

It is a cyclic number.

It is not a de Polignac number, because 195854537 - 2⁴ = 195854521 is a prime.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 195854491 and 195854500.

It is not a weakly prime, because it can be changed into another prime (195854531) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 97927268 + 97927269.

It is an arithmetic number, because the mean of its divisors is an integer number (97927269).

Almost surely, 2^195854537 is an apocalyptic number.

It is an amenable number.

195854537 is a deficient number, since it is larger than the sum of its proper divisors (1).

195854537 is an equidigital number, since it uses as much as digits as its factorization.

195854537 is an evil number, because the sum of its binary digits is even.

The product of its digits is 756000, while the sum is 47.

The square root of 195854537 is about 13994.8039286015. The cubic root of 195854537 is about 580.7348365337.

The spelling of 195854537 in words is "one hundred ninety-five million, eight hundred fifty-four thousand, five hundred thirty-seven".