231154222 has 16 divisors (see below), whose sum is σ = 373699872. Its totient is φ = 106601760.

The previous prime is 231154211. The next prime is 231154223. The reversal of 231154222 is 222451132.

It is a happy number.

231154222 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a junction number, because it is equal to n+sod(n) for n = 231154193 and 231154202.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (231154223) 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, 39847 + ... + 45277.

It is an arithmetic number, because the mean of its divisors is an integer number (23356242).

Almost surely, 2^231154222 is an apocalyptic number.

231154222 is a deficient number, since it is larger than the sum of its proper divisors (142545650).

231154222 is a wasteful number, since it uses less digits than its factorization.

231154222 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7083.

The product of its digits is 960, while the sum is 22.

The square root of 231154222 is about 15203.7568383607. The cubic root of 231154222 is about 613.7157610908.

The spelling of 231154222 in words is "two hundred thirty-one million, one hundred fifty-four thousand, two hundred twenty-two".