27418129 has 2 divisors, whose sum is σ = 27418130. Its totient is φ = 27418128.

The previous prime is 27418109. The next prime is 27418199. The reversal of 27418129 is 92181472.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 17640000 + 9778129 = 4200^2 + 3127^2 .

It is a cyclic number.

It is not a de Polignac number, because 27418129 - 2¹³ = 27409937 is a prime.

It is an alternating number because its digits alternate between even and odd.

It is a junction number, because it is equal to n+sod(n) for n = 27418094 and 27418103.

It is not a weakly prime, because it can be changed into another prime (27418109) 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 as a sum of consecutive naturals, namely, 13709064 + 13709065.

It is an arithmetic number, because the mean of its divisors is an integer number (13709065).

Almost surely, 2^27418129 is an apocalyptic number.

It is an amenable number.

27418129 is a deficient number, since it is larger than the sum of its proper divisors (1).

27418129 is an equidigital number, since it uses as much as digits as its factorization.

27418129 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 8064, while the sum is 34.

The square root of 27418129 is about 5236.2323286883. The cubic root of 27418129 is about 301.5406998604.

The spelling of 27418129 in words is "twenty-seven million, four hundred eighteen thousand, one hundred twenty-nine".