258192061 has 2 divisors, whose sum is σ = 258192062. Its totient is φ = 258192060.

The previous prime is 258192059. The next prime is 258192101. The reversal of 258192061 is 160291852.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 216266436 + 41925625 = 14706^2 + 6475^2 .

It is a cyclic number.

It is not a de Polignac number, because 258192061 - 2¹ = 258192059 is a prime.

Together with 258192059, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (258112061) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 129096030 + 129096031.

It is an arithmetic number, because the mean of its divisors is an integer number (129096031).

Almost surely, 2^258192061 is an apocalyptic number.

It is an amenable number.

258192061 is a deficient number, since it is larger than the sum of its proper divisors (1).

258192061 is an equidigital number, since it uses as much as digits as its factorization.

258192061 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 8640, while the sum is 34.

The square root of 258192061 is about 16068.3558897605. The cubic root of 258192061 is about 636.7676057108.

The spelling of 258192061 in words is "two hundred fifty-eight million, one hundred ninety-two thousand, sixty-one".