220423154 has 16 divisors (see below), whose sum is σ = 378158976. Its totient is φ = 94394400.

The previous prime is 220423127. The next prime is 220423187. The reversal of 220423154 is 451324022.

It is a happy 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, 15419 + ... + 26049.

It is an arithmetic number, because the mean of its divisors is an integer number (23634936).

Almost surely, 2^220423154 is an apocalyptic number.

220423154 is a deficient number, since it is larger than the sum of its proper divisors (157735822).

220423154 is a wasteful number, since it uses less digits than its factorization.

220423154 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12121.

The product of its (nonzero) digits is 1920, while the sum is 23.

The square root of 220423154 is about 14846.6546400191. The cubic root of 220423154 is about 604.0678713403.

Adding to 220423154 its reverse (451324022), we get a palindrome (671747176).

The spelling of 220423154 in words is "two hundred twenty million, four hundred twenty-three thousand, one hundred fifty-four".