123219224 has 8 divisors (see below), whose sum is σ = 231036060. Its totient is φ = 61609608.

The previous prime is 123219221. The next prime is 123219241. The reversal of 123219224 is 422912321.

It is a tau number, because it is divible by the number of its divisors (8).

It is a junction number, because it is equal to n+sod(n) for n = 123219193 and 123219202.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (123219221) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 7701194 + ... + 7701209.

Almost surely, 2^123219224 is an apocalyptic number.

It is an amenable number.

123219224 is a deficient number, since it is larger than the sum of its proper divisors (107816836).

123219224 is a wasteful number, since it uses less digits than its factorization.

123219224 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15402409 (or 15402405 counting only the distinct ones).

The product of its digits is 1728, while the sum is 26.

The square root of 123219224 is about 11100.4154877194. The cubic root of 123219224 is about 497.6142666581.

The spelling of 123219224 in words is "one hundred twenty-three million, two hundred nineteen thousand, two hundred twenty-four".