10218149 has 2 divisors, whose sum is σ = 10218150. Its totient is φ = 10218148.

The previous prime is 10218119. The next prime is 10218161. The reversal of 10218149 is 94181201.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 10125124 + 93025 = 3182^2 + 305^2 .

It is an emirp because it is prime and its reverse (94181201) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-10218149 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (10218119) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5109074 + 5109075.

It is an arithmetic number, because the mean of its divisors is an integer number (5109075).

Almost surely, 2^10218149 is an apocalyptic number.

It is an amenable number.

10218149 is a deficient number, since it is larger than the sum of its proper divisors (1).

10218149 is an equidigital number, since it uses as much as digits as its factorization.

10218149 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 576, while the sum is 26.

The square root of 10218149 is about 3196.5839579151. The cubic root of 10218149 is about 216.9988390716.

The spelling of 10218149 in words is "ten million, two hundred eighteen thousand, one hundred forty-nine".