124281000 has 128 divisors (see below), whose sum is σ = 430934400. Its totient is φ = 33134400.

The previous prime is 124280993. The next prime is 124281023. The reversal of 124281000 is 182421.

It is a super-2 number, since 2×124281000² = 30891533922000000, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 24699 + ... + 29301.

It is an arithmetic number, because the mean of its divisors is an integer number (3366675).

Almost surely, 2^124281000 is an apocalyptic number.

124281000 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 124281000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (215467200).

124281000 is an abundant number, since it is smaller than the sum of its proper divisors (306653400).

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

124281000 is a wasteful number, since it uses less digits than its factorization.

124281000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4633 (or 4613 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 18.

The square root of 124281000 is about 11148.1388581234. The cubic root of 124281000 is about 499.0394893535.

The spelling of 124281000 in words is "one hundred twenty-four million, two hundred eighty-one thousand".