124223140 has 24 divisors (see below), whose sum is σ = 274599360. Its totient is φ = 47073888.

The previous prime is 124223137. The next prime is 124223189. The reversal of 124223140 is 41322421.

It is a super-2 number, since 2×124223140² = 30862777022919200, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (19).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 163072 + ... + 163831.

It is an arithmetic number, because the mean of its divisors is an integer number (11441640).

Almost surely, 2^124223140 is an apocalyptic number.

124223140 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

124223140 is an abundant number, since it is smaller than the sum of its proper divisors (150376220).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

124223140 is a wasteful number, since it uses less digits than its factorization.

124223140 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 326931 (or 326929 counting only the distinct ones).

The product of its (nonzero) digits is 384, while the sum is 19.

The square root of 124223140 is about 11145.5435040199. The cubic root of 124223140 is about 498.9620334084.

Adding to 124223140 its reverse (41322421), we get a palindrome (165545561).

The spelling of 124223140 in words is "one hundred twenty-four million, two hundred twenty-three thousand, one hundred forty".