197119939 has 2 divisors, whose sum is σ = 197119940. Its totient is φ = 197119938.

The previous prime is 197119907. The next prime is 197119961. The reversal of 197119939 is 939911791.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 197119939 - 2⁵ = 197119907 is a prime.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 197119892 and 197119901.

It is not a weakly prime, because it can be changed into another prime (197119969) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 98559969 + 98559970.

It is an arithmetic number, because the mean of its divisors is an integer number (98559970).

Almost surely, 2^197119939 is an apocalyptic number.

197119939 is a deficient number, since it is larger than the sum of its proper divisors (1).

197119939 is an equidigital number, since it uses as much as digits as its factorization.

197119939 is an evil number, because the sum of its binary digits is even.

The product of its digits is 137781, while the sum is 49.

The square root of 197119939 is about 14039.9408474537. The cubic root of 197119939 is about 581.9828478706.

The spelling of 197119939 in words is "one hundred ninety-seven million, one hundred nineteen thousand, nine hundred thirty-nine".