258113281 has 2 divisors, whose sum is σ = 258113282. Its totient is φ = 258113280.

The previous prime is 258113249. The next prime is 258113321. The reversal of 258113281 is 182311852.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 243360000 + 14753281 = 15600^2 + 3841^2 .

It is a cyclic number.

It is not a de Polignac number, because 258113281 - 2⁵ = 258113249 is a prime.

It is a super-2 number, since 2×258113281² = 133244931657169922, which contains 22 as substring.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (258113201) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 129056640 + 129056641.

It is an arithmetic number, because the mean of its divisors is an integer number (129056641).

Almost surely, 2^258113281 is an apocalyptic number.

It is an amenable number.

258113281 is a deficient number, since it is larger than the sum of its proper divisors (1).

258113281 is an equidigital number, since it uses as much as digits as its factorization.

258113281 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 3840, while the sum is 31.

The square root of 258113281 is about 16065.9043007233. The cubic root of 258113281 is about 636.7028352517.

It can be divided in two parts, 25811 and 3281, that added together give a palindrome (29092).

The spelling of 258113281 in words is "two hundred fifty-eight million, one hundred thirteen thousand, two hundred eighty-one".