18460129 has 2 divisors, whose sum is σ = 18460130. Its totient is φ = 18460128.

The previous prime is 18460109. The next prime is 18460157. The reversal of 18460129 is 92106481.

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., 17239104 + 1221025 = 4152^2 + 1105^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-18460129 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 18460129.

It is not a weakly prime, because it can be changed into another prime (18460109) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 9230064 + 9230065.

It is an arithmetic number, because the mean of its divisors is an integer number (9230065).

Almost surely, 2^18460129 is an apocalyptic number.

It is an amenable number.

18460129 is a deficient number, since it is larger than the sum of its proper divisors (1).

18460129 is an equidigital number, since it uses as much as digits as its factorization.

18460129 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 3456, while the sum is 31.

The square root of 18460129 is about 4296.5252239455. The cubic root of 18460129 is about 264.2884864852.

The spelling of 18460129 in words is "eighteen million, four hundred sixty thousand, one hundred twenty-nine".