220456545 has 32 divisors (see below), whose sum is σ = 363450240. Its totient is φ = 114024960.

The previous prime is 220456519. The next prime is 220456573. The reversal of 220456545 is 545654022.

220456545 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 220456545 - 2⁵ = 220456513 is a prime.

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 272101 + ... + 272909.

It is an arithmetic number, because the mean of its divisors is an integer number (11357820).

Almost surely, 2^220456545 is an apocalyptic number.

It is an amenable number.

220456545 is a deficient number, since it is larger than the sum of its proper divisors (142993695).

220456545 is a wasteful number, since it uses less digits than its factorization.

220456545 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1345.

The product of its (nonzero) digits is 48000, while the sum is 33.

The square root of 220456545 is about 14847.7791268593. The cubic root of 220456545 is about 604.0983723887.

The spelling of 220456545 in words is "two hundred twenty million, four hundred fifty-six thousand, five hundred forty-five".