220231154 has 16 divisors (see below), whose sum is σ = 388100160. Its totient is φ = 92404560.

The previous prime is 220231139. The next prime is 220231159. The reversal of 220231154 is 451132022.

220231154 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×220231154² = 97003522384343432, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (220231159) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 384734 + ... + 385305.

It is an arithmetic number, because the mean of its divisors is an integer number (24256260).

Almost surely, 2^220231154 is an apocalyptic number.

220231154 is a deficient number, since it is larger than the sum of its proper divisors (167869006).

220231154 is a wasteful number, since it uses less digits than its factorization.

220231154 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 770065.

The product of its (nonzero) digits is 480, while the sum is 20.

The square root of 220231154 is about 14840.1871282002. The cubic root of 220231154 is about 603.8924289081.

Adding to 220231154 its reverse (451132022), we get a palindrome (671363176).

The spelling of 220231154 in words is "two hundred twenty million, two hundred thirty-one thousand, one hundred fifty-four".