150420218 has 16 divisors (see below), whose sum is σ = 245220360. Its totient is φ = 68786496.

The previous prime is 150420217. The next prime is 150420229. The reversal of 150420218 is 812024051.

It can be written as a sum of positive squares in 4 ways, for example, as 71690089 + 78730129 = 8467^2 + 8873^2 .

It is a junction number, because it is equal to n+sod(n) for n = 150420193 and 150420202.

It is not an unprimeable number, because it can be changed into a prime (150420217) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 23705 + ... + 29372.

Almost surely, 2^150420218 is an apocalyptic number.

150420218 is a deficient number, since it is larger than the sum of its proper divisors (94800142).

150420218 is a wasteful number, since it uses less digits than its factorization.

150420218 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 53201.

The product of its (nonzero) digits is 640, while the sum is 23.

The square root of 150420218 is about 12264.5920437657. The cubic root of 150420218 is about 531.8249867154.

Adding to 150420218 its reverse (812024051), we get a palindrome (962444269).

The spelling of 150420218 in words is "one hundred fifty million, four hundred twenty thousand, two hundred eighteen".