18038107 has 2 divisors, whose sum is σ = 18038108. Its totient is φ = 18038106.

The previous prime is 18038099. The next prime is 18038117. The reversal of 18038107 is 70183081.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 18038107 - 2³ = 18038099 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (18038117) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 9019053 + 9019054.

It is an arithmetic number, because the mean of its divisors is an integer number (9019054).

Almost surely, 2^18038107 is an apocalyptic number.

18038107 is a deficient number, since it is larger than the sum of its proper divisors (1).

18038107 is an equidigital number, since it uses as much as digits as its factorization.

18038107 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1344, while the sum is 28.

The square root of 18038107 is about 4247.1292657512. The cubic root of 18038107 is about 262.2589509011.

It can be divided in two parts, 18038 and 107, that added together give a triangular number (18145 = T₁₉₀).

The spelling of 18038107 in words is "eighteen million, thirty-eight thousand, one hundred seven".