218149483 has 2 divisors, whose sum is σ = 218149484. Its totient is φ = 218149482.

The previous prime is 218149471. The next prime is 218149487. The reversal of 218149483 is 384941812.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-218149483 is a prime.

It is not a weakly prime, because it can be changed into another prime (218149487) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 109074741 + 109074742.

It is an arithmetic number, because the mean of its divisors is an integer number (109074742).

Almost surely, 2^218149483 is an apocalyptic number.

218149483 is a deficient number, since it is larger than the sum of its proper divisors (1).

218149483 is an equidigital number, since it uses as much as digits as its factorization.

218149483 is an evil number, because the sum of its binary digits is even.

The product of its digits is 55296, while the sum is 40.

The square root of 218149483 is about 14769.8843258842. The cubic root of 218149483 is about 601.9836963904.

The spelling of 218149483 in words is "two hundred eighteen million, one hundred forty-nine thousand, four hundred eighty-three".