220455146 has 4 divisors (see below), whose sum is σ = 330682722. Its totient is φ = 110227572.

The previous prime is 220455127. The next prime is 220455163. The reversal of 220455146 is 641554022.

220455146 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: 641554022 = 2 ⋅320777011.

It can be written as a sum of positive squares in only one way, i.e., 181953121 + 38502025 = 13489^2 + 6205^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 55113785 + ... + 55113788.

Almost surely, 2^220455146 is an apocalyptic number.

220455146 is a deficient number, since it is larger than the sum of its proper divisors (110227576).

220455146 is a wasteful number, since it uses less digits than its factorization.

220455146 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 110227575.

The product of its (nonzero) digits is 9600, while the sum is 29.

The square root of 220455146 is about 14847.7320153618. The cubic root of 220455146 is about 604.0970945323.

The spelling of 220455146 in words is "two hundred twenty million, four hundred fifty-five thousand, one hundred forty-six".