124442121 has 8 divisors (see below), whose sum is σ = 173136960. Its totient is φ = 79354352.

The previous prime is 124442119. The next prime is 124442141. The reversal of 124442121 is 121244421.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 124442121 - 2¹ = 124442119 is a prime.

It is not an unprimeable number, because it can be changed into a prime (124442141) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 901686 + ... + 901823.

It is an arithmetic number, because the mean of its divisors is an integer number (21642120).

Almost surely, 2^124442121 is an apocalyptic number.

It is an amenable number.

124442121 is a deficient number, since it is larger than the sum of its proper divisors (48694839).

124442121 is a wasteful number, since it uses less digits than its factorization.

124442121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1803535.

The product of its digits is 512, while the sum is 21.

The square root of 124442121 is about 11155.3628806955. The cubic root of 124442121 is about 499.2550519895.

Adding to 124442121 its reverse (121244421), we get a palindrome (245686542).

It can be divided in two parts, 1244 and 42121, that added together give a triangular number (43365 = T₂₉₄).

The spelling of 124442121 in words is "one hundred twenty-four million, four hundred forty-two thousand, one hundred twenty-one".