197030857141 has 4 divisors (see below), whose sum is σ = 197087789484. Its totient is φ = 196973924800.

The previous prime is 197030857061. The next prime is 197030857189. The reversal of 197030857141 is 141758030791.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 85895300241 + 111135556900 = 293079^2 + 333370^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-197030857141 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 197030857091 and 197030857100.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (197030857741) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 28460980 + ... + 28467901.

It is an arithmetic number, because the mean of its divisors is an integer number (49271947371).

Almost surely, 2^197030857141 is an apocalyptic number.

It is an amenable number.

197030857141 is a deficient number, since it is larger than the sum of its proper divisors (56932343).

197030857141 is an equidigital number, since it uses as much as digits as its factorization.

197030857141 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 56932342.

The product of its (nonzero) digits is 211680, while the sum is 46.

The spelling of 197030857141 in words is "one hundred ninety-seven billion, thirty million, eight hundred fifty-seven thousand, one hundred forty-one".