220154512 has 20 divisors (see below), whose sum is σ = 431691120. Its totient is φ = 108750368.

The previous prime is 220154509. The next prime is 220154531. The reversal of 220154512 is 215451022.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 81562 + ... + 84217.

It is an arithmetic number, because the mean of its divisors is an integer number (21584556).

Almost surely, 2^220154512 is an apocalyptic number.

It is an amenable number.

220154512 is a deficient number, since it is larger than the sum of its proper divisors (211536608).

220154512 is a wasteful number, since it uses less digits than its factorization.

220154512 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 165870 (or 165864 counting only the distinct ones).

The product of its (nonzero) digits is 800, while the sum is 22.

The square root of 220154512 is about 14837.6046584346. The cubic root of 220154512 is about 603.8223678340.

The spelling of 220154512 in words is "two hundred twenty million, one hundred fifty-four thousand, five hundred twelve".