18495329 has 2 divisors, whose sum is σ = 18495330. Its totient is φ = 18495328.

The previous prime is 18495319. The next prime is 18495331. The reversal of 18495329 is 92359481.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 18490000 + 5329 = 4300^2 + 73^2 .

It is a cyclic number.

It is not a de Polignac number, because 18495329 - 2¹² = 18491233 is a prime.

Together with 18495331, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (18495319) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 9247664 + 9247665.

It is an arithmetic number, because the mean of its divisors is an integer number (9247665).

Almost surely, 2^18495329 is an apocalyptic number.

It is an amenable number.

18495329 is a deficient number, since it is larger than the sum of its proper divisors (1).

18495329 is an equidigital number, since it uses as much as digits as its factorization.

18495329 is an evil number, because the sum of its binary digits is even.

The product of its digits is 77760, while the sum is 41.

The square root of 18495329 is about 4300.6196065218. The cubic root of 18495329 is about 264.4563626683.

It can be divided in two parts, 1849 and 5329, that multiplied together give a square (9853321 = 3139²).

The spelling of 18495329 in words is "eighteen million, four hundred ninety-five thousand, three hundred twenty-nine".