124534687220 has 12 divisors (see below), whose sum is σ = 261522843204. Its totient is φ = 49813874880.

The previous prime is 124534687213. The next prime is 124534687241. The reversal of 124534687220 is 22786435421.

It can be written as a sum of positive squares in 2 ways, for example, as 79350382864 + 45184304356 = 281692^2 + 212566^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3113367161 + ... + 3113367200.

It is an arithmetic number, because the mean of its divisors is an integer number (21793570267).

Almost surely, 2^124534687220 is an apocalyptic number.

124534687220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

124534687220 is an abundant number, since it is smaller than the sum of its proper divisors (136988155984).

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

124534687220 is a wasteful number, since it uses less digits than its factorization.

124534687220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6226734370 (or 6226734368 counting only the distinct ones).

The product of its (nonzero) digits is 645120, while the sum is 44.

The spelling of 124534687220 in words is "one hundred twenty-four billion, five hundred thirty-four million, six hundred eighty-seven thousand, two hundred twenty".