18413029 has 2 divisors, whose sum is σ = 18413030. Its totient is φ = 18413028.

The previous prime is 18413027. The next prime is 18413051. The reversal of 18413029 is 92031481.

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., 11068929 + 7344100 = 3327^2 + 2710^2 .

It is a cyclic number.

It is not a de Polignac number, because 18413029 - 2¹ = 18413027 is a prime.

Together with 18413027, it forms a pair of twin primes.

It is a junction number, because it is equal to n+sod(n) for n = 18412988 and 18413006.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (18413027) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 9206514 + 9206515.

It is an arithmetic number, because the mean of its divisors is an integer number (9206515).

Almost surely, 2^18413029 is an apocalyptic number.

It is an amenable number.

18413029 is a deficient number, since it is larger than the sum of its proper divisors (1).

18413029 is an equidigital number, since it uses as much as digits as its factorization.

18413029 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1728, while the sum is 28.

The square root of 18413029 is about 4291.0405497968. The cubic root of 18413029 is about 264.0635225548.

The spelling of 18413029 in words is "eighteen million, four hundred thirteen thousand, twenty-nine".