258620161 has 2 divisors, whose sum is σ = 258620162. Its totient is φ = 258620160.

The previous prime is 258620147. The next prime is 258620171. The reversal of 258620161 is 161026852.

258620161 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 180633600 + 77986561 = 13440^2 + 8831^2 .

It is a cyclic number.

It is not a de Polignac number, because 258620161 - 2⁹ = 258619649 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (258620171) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 129310080 + 129310081.

It is an arithmetic number, because the mean of its divisors is an integer number (129310081).

Almost surely, 2^258620161 is an apocalyptic number.

It is an amenable number.

258620161 is a deficient number, since it is larger than the sum of its proper divisors (1).

258620161 is an equidigital number, since it uses as much as digits as its factorization.

258620161 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 5760, while the sum is 31.

The square root of 258620161 is about 16081.6715860013. The cubic root of 258620161 is about 637.1193460475.

The spelling of 258620161 in words is "two hundred fifty-eight million, six hundred twenty thousand, one hundred sixty-one".