18075377 has 2 divisors, whose sum is σ = 18075378. Its totient is φ = 18075376.

The previous prime is 18075359. The next prime is 18075391. The reversal of 18075377 is 77357081.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 16900321 + 1175056 = 4111^2 + 1084^2 .

It is an emirp because it is prime and its reverse (77357081) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 18075377 - 2²⁴ = 1298161 is a prime.

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 18075377.

It is not a weakly prime, because it can be changed into another prime (18075347) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 9037688 + 9037689.

It is an arithmetic number, because the mean of its divisors is an integer number (9037689).

Almost surely, 2^18075377 is an apocalyptic number.

It is an amenable number.

18075377 is a deficient number, since it is larger than the sum of its proper divisors (1).

18075377 is an equidigital number, since it uses as much as digits as its factorization.

18075377 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 41160, while the sum is 38.

The square root of 18075377 is about 4251.5146712672. The cubic root of 18075377 is about 262.4394514922.

It can be divided in two parts, 180 and 75377, that added together give a palindrome (75557).

The spelling of 18075377 in words is "eighteen million, seventy-five thousand, three hundred seventy-seven".