197875913 has 2 divisors, whose sum is σ = 197875914. Its totient is φ = 197875912.

The previous prime is 197875907. The next prime is 197875919. The reversal of 197875913 is 319578791.

It is a balanced prime because it is at equal distance from previous prime (197875907) and next prime (197875919).

It can be written as a sum of positive squares in only one way, i.e., 187909264 + 9966649 = 13708^2 + 3157^2 .

It is a cyclic number.

It is not a de Polignac number, because 197875913 - 2¹⁰ = 197874889 is a prime.

It is not a weakly prime, because it can be changed into another prime (197875919) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 98937956 + 98937957.

It is an arithmetic number, because the mean of its divisors is an integer number (98937957).

Almost surely, 2^197875913 is an apocalyptic number.

It is an amenable number.

197875913 is a deficient number, since it is larger than the sum of its proper divisors (1).

197875913 is an equidigital number, since it uses as much as digits as its factorization.

197875913 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 476280, while the sum is 50.

The square root of 197875913 is about 14066.8373488855. The cubic root of 197875913 is about 582.7258856107.

The spelling of 197875913 in words is "one hundred ninety-seven million, eight hundred seventy-five thousand, nine hundred thirteen".