258100681 has 4 divisors (see below), whose sum is σ = 273283092. Its totient is φ = 242918272.

The previous prime is 258100673. The next prime is 258100709. The reversal of 258100681 is 186001852.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 121000000 + 137100681 = 11000^2 + 11709^2 .

It is a cyclic number.

It is not a de Polignac number, because 258100681 - 2³ = 258100673 is a prime.

It is a super-2 number, since 2×258100681² = 133231923065327522, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (258100651) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7591180 + ... + 7591213.

It is an arithmetic number, because the mean of its divisors is an integer number (68320773).

Almost surely, 2^258100681 is an apocalyptic number.

It is an amenable number.

258100681 is a deficient number, since it is larger than the sum of its proper divisors (15182411).

258100681 is a wasteful number, since it uses less digits than its factorization.

258100681 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15182410.

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

The square root of 258100681 is about 16065.5121611482. The cubic root of 258100681 is about 636.6924747022.

The spelling of 258100681 in words is "two hundred fifty-eight million, one hundred thousand, six hundred eighty-one".