220455145 has 8 divisors (see below), whose sum is σ = 270175104. Its totient is φ = 172611504.

The previous prime is 220455127. The next prime is 220455163. The reversal of 220455145 is 541554022.

220455145 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (220455127) and next prime (220455163).

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 220455145 - 2¹¹ = 220453097 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 468819 + ... + 469288.

It is an arithmetic number, because the mean of its divisors is an integer number (33771888).

Almost surely, 2^220455145 is an apocalyptic number.

It is an amenable number.

220455145 is a deficient number, since it is larger than the sum of its proper divisors (49719959).

220455145 is an equidigital number, since it uses as much as digits as its factorization.

220455145 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 938159.

The product of its (nonzero) digits is 8000, while the sum is 28.

The square root of 220455145 is about 14847.7319816866. The cubic root of 220455145 is about 604.0970936189.

The spelling of 220455145 in words is "two hundred twenty million, four hundred fifty-five thousand, one hundred forty-five".