220030154 has 4 divisors (see below), whose sum is σ = 330045234. Its totient is φ = 110015076.

The previous prime is 220030117. The next prime is 220030159. The reversal of 220030154 is 451030022.

220030154 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 451030022 = 2 ⋅225515011.

It can be written as a sum of positive squares in only one way, i.e., 218005225 + 2024929 = 14765^2 + 1423^2 .

It is not an unprimeable number, because it can be changed into a prime (220030159) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 55007537 + ... + 55007540.

Almost surely, 2^220030154 is an apocalyptic number.

220030154 is a deficient number, since it is larger than the sum of its proper divisors (110015080).

220030154 is a wasteful number, since it uses less digits than its factorization.

220030154 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 110015079.

The product of its (nonzero) digits is 240, while the sum is 17.

The square root of 220030154 is about 14833.4134304954. The cubic root of 220030154 is about 603.7086533275.

Adding to 220030154 its reverse (451030022), we get a palindrome (671060176).

The spelling of 220030154 in words is "two hundred twenty million, thirty thousand, one hundred fifty-four".