124642122 has 64 divisors (see below), whose sum is σ = 286032384. Its totient is φ = 35864640.

The previous prime is 124642121. The next prime is 124642139. The reversal of 124642122 is 221246421.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 124642092 and 124642101.

It is not an unprimeable number, because it can be changed into a prime (124642121) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 104413 + ... + 105599.

It is an arithmetic number, because the mean of its divisors is an integer number (4469256).

Almost surely, 2^124642122 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 124642122, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (143016192).

124642122 is an abundant number, since it is smaller than the sum of its proper divisors (161390262).

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

124642122 is a wasteful number, since it uses less digits than its factorization.

124642122 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1283.

The product of its digits is 1536, while the sum is 24.

The square root of 124642122 is about 11164.3236248328. The cubic root of 124642122 is about 499.5223732239.

Adding to 124642122 its reverse (221246421), we get a palindrome (345888543).

It can be divided in two parts, 124 and 642122, that added together give a palindrome (642246).

The spelling of 124642122 in words is "one hundred twenty-four million, six hundred forty-two thousand, one hundred twenty-two".