197015691371 has 2 divisors, whose sum is σ = 197015691372. Its totient is φ = 197015691370.

The previous prime is 197015691269. The next prime is 197015691437. The reversal of 197015691371 is 173196510791.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 197015691371 - 2¹⁴ = 197015674987 is a prime.

It is a Sophie Germain prime.

It is not a weakly prime, because it can be changed into another prime (197015691571) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 98507845685 + 98507845686.

It is an arithmetic number, because the mean of its divisors is an integer number (98507845686).

Almost surely, 2^197015691371 is an apocalyptic number.

197015691371 is a deficient number, since it is larger than the sum of its proper divisors (1).

197015691371 is an equidigital number, since it uses as much as digits as its factorization.

197015691371 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 357210, while the sum is 50.

The spelling of 197015691371 in words is "one hundred ninety-seven billion, fifteen million, six hundred ninety-one thousand, three hundred seventy-one".