18059401 has 2 divisors, whose sum is σ = 18059402. Its totient is φ = 18059400.

The previous prime is 18059399. The next prime is 18059411. The reversal of 18059401 is 10495081.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 17808400 + 251001 = 4220^2 + 501^2 .

It is a cyclic number.

It is not a de Polignac number, because 18059401 - 2¹ = 18059399 is a prime.

It is a super-2 number, since 2×18059401² = 652283928957602, which contains 22 as substring.

Together with 18059399, it forms a pair of twin primes.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 18059401.

It is not a weakly prime, because it can be changed into another prime (18059411) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 9029700 + 9029701.

It is an arithmetic number, because the mean of its divisors is an integer number (9029701).

Almost surely, 2^18059401 is an apocalyptic number.

It is an amenable number.

18059401 is a deficient number, since it is larger than the sum of its proper divisors (1).

18059401 is an equidigital number, since it uses as much as digits as its factorization.

18059401 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1440, while the sum is 28.

The square root of 18059401 is about 4249.6353961252. The cubic root of 18059401 is about 262.3621092872.

The spelling of 18059401 in words is "eighteen million, fifty-nine thousand, four hundred one".