18058801 has 4 divisors (see below), whose sum is σ = 18079012. Its totient is φ = 18038592.

The previous prime is 18058787. The next prime is 18058823. The reversal of 18058801 is 10885081.

It is a happy number.

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 5527201 + 12531600 = 2351^2 + 3540^2 .

It is a cyclic number.

It is not a de Polignac number, because 18058801 - 2⁵ = 18058769 is a prime.

It is a super-2 number, since 2×18058801² = 652240587115202, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (18058861) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 8700 + ... + 10573.

It is an arithmetic number, because the mean of its divisors is an integer number (4519753).

Almost surely, 2^18058801 is an apocalyptic number.

It is an amenable number.

18058801 is a deficient number, since it is larger than the sum of its proper divisors (20211).

18058801 is an equidigital number, since it uses as much as digits as its factorization.

18058801 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20210.

The product of its (nonzero) digits is 2560, while the sum is 31.

The square root of 18058801 is about 4249.5648012473. The cubic root of 18058801 is about 262.3592037090.

The spelling of 18058801 in words is "eighteen million, fifty-eight thousand, eight hundred one".