220460851 has 4 divisors (see below), whose sum is σ = 237419392. Its totient is φ = 203502312.

The previous prime is 220460843. The next prime is 220460861. The reversal of 220460851 is 158064022.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 220460851 - 2³ = 220460843 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (220460861) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 8479251 + ... + 8479276.

It is an arithmetic number, because the mean of its divisors is an integer number (59354848).

Almost surely, 2^220460851 is an apocalyptic number.

220460851 is a deficient number, since it is larger than the sum of its proper divisors (16958541).

220460851 is a wasteful number, since it uses less digits than its factorization.

220460851 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16958540.

The product of its (nonzero) digits is 3840, while the sum is 28.

The square root of 220460851 is about 14847.9241310023. The cubic root of 220460851 is about 604.1023054853.

The spelling of 220460851 in words is "two hundred twenty million, four hundred sixty thousand, eight hundred fifty-one".