258542111 has 2 divisors, whose sum is σ = 258542112. Its totient is φ = 258542110.

The previous prime is 258542083. The next prime is 258542117. The reversal of 258542111 is 111245852.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-258542111 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 (258542117) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 129271055 + 129271056.

It is an arithmetic number, because the mean of its divisors is an integer number (129271056).

Almost surely, 2^258542111 is an apocalyptic number.

258542111 is a deficient number, since it is larger than the sum of its proper divisors (1).

258542111 is an equidigital number, since it uses as much as digits as its factorization.

258542111 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 3200, while the sum is 29.

The square root of 258542111 is about 16079.2447272874. The cubic root of 258542111 is about 637.0552466774.

Adding to 258542111 its reverse (111245852), we get a palindrome (369787963).

The spelling of 258542111 in words is "two hundred fifty-eight million, five hundred forty-two thousand, one hundred eleven".