258948197 has 2 divisors, whose sum is σ = 258948198. Its totient is φ = 258948196.

The previous prime is 258948161. The next prime is 258948203. The reversal of 258948197 is 791849852.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 251983876 + 6964321 = 15874^2 + 2639^2 .

It is a cyclic number.

It is not a de Polignac number, because 258948197 - 2⁶ = 258948133 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (258948997) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 129474098 + 129474099.

It is an arithmetic number, because the mean of its divisors is an integer number (129474099).

Almost surely, 2^258948197 is an apocalyptic number.

It is an amenable number.

258948197 is a deficient number, since it is larger than the sum of its proper divisors (1).

258948197 is an equidigital number, since it uses as much as digits as its factorization.

258948197 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1451520, while the sum is 53.

The square root of 258948197 is about 16091.8674180469. The cubic root of 258948197 is about 637.3886080909.

The spelling of 258948197 in words is "two hundred fifty-eight million, nine hundred forty-eight thousand, one hundred ninety-seven".