150218 has 4 divisors (see below), whose sum is σ = 225330. Its totient is φ = 75108.

The previous prime is 150217. The next prime is 150221. The reversal of 150218 is 812051.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 100489 + 49729 = 317^2 + 223^2 .

It is a junction number, because it is equal to n+sod(n) for n = 150196 and 150205.

It is not an unprimeable number, because it can be changed into a prime (150211) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 37553 + ... + 37556.

2¹⁵⁰²¹⁸ is an apocalyptic number.

150218 is a deficient number, since it is larger than the sum of its proper divisors (75112).

150218 is an equidigital number, since it uses as much as digits as its factorization.

150218 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 75111.

The product of its (nonzero) digits is 80, while the sum is 17.

The square root of 150218 is about 387.5796692294. The cubic root of 150218 is about 53.1586559516.

Adding to 150218 its reverse (812051), we get a palindrome (962269).

The spelling of 150218 in words is "one hundred fifty thousand, two hundred eighteen".