18350147 has 2 divisors, whose sum is σ = 18350148. Its totient is φ = 18350146.

The previous prime is 18350131. The next prime is 18350153. The reversal of 18350147 is 74105381.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 18350147 - 2⁴ = 18350131 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (18350117) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 9175073 + 9175074.

It is an arithmetic number, because the mean of its divisors is an integer number (9175074).

Almost surely, 2^18350147 is an apocalyptic number.

18350147 is a deficient number, since it is larger than the sum of its proper divisors (1).

18350147 is an equidigital number, since it uses as much as digits as its factorization.

18350147 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 3360, while the sum is 29.

The square root of 18350147 is about 4283.7071561908. The cubic root of 18350147 is about 263.7625802045.

The spelling of 18350147 in words is "eighteen million, three hundred fifty thousand, one hundred forty-seven".