124121272 has 64 divisors (see below), whose sum is σ = 264591360. Its totient is φ = 54076800.

The previous prime is 124121251. The next prime is 124121279. The reversal of 124121272 is 272121421.

It is a Harshad number since it is a multiple of its sum of digits (22).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (124121279) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 471813 + ... + 472075.

It is an arithmetic number, because the mean of its divisors is an integer number (4134240).

Almost surely, 2^124121272 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 124121272, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (132295680).

124121272 is an abundant number, since it is smaller than the sum of its proper divisors (140470088).

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

124121272 is a wasteful number, since it uses less digits than its factorization.

124121272 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 484 (or 480 counting only the distinct ones).

The product of its digits is 448, while the sum is 22.

The square root of 124121272 is about 11140.9726684882. The cubic root of 124121272 is about 498.8256064258.

Adding to 124121272 its reverse (272121421), we get a palindrome (396242693).

The spelling of 124121272 in words is "one hundred twenty-four million, one hundred twenty-one thousand, two hundred seventy-two".